This case arises out of a J lawsuit in which appellants sought damages from appellees for breach of warranty, breach of contract, and fraud. The trial judge granted summary judgment in favor of appellees on the ground that appellants’ claims were barred by the applicable statutes of limitation. On appeal, appellants argue that the summary-judgment ruling was erroneous as it pertained to their cause of action for fraud. We agree and reverse and remand.
*349Appellants are forty individuals and five corporations engaged in the business of growing turkeys. In the 1980s and 1990s, their turkeys were processed at a Huntsville, Arkansas, plant operated by appellee Swift-Eckrich, Inc., a subsidiary of appellee Conagra, Inc. The plant’s production manager was appellee Richard Wolf.1 Appellants did not contract directly with Swift during this period but operated through two independent producers, Hugh McClain and Kirk Powell. McClain and Powell had written contracts with Swift whereby they purchased turkey poults from Swift, then resold the grown turkeys back to Swift for processing.
On October 21, 1998, appellants sued appellees, seeking compensatory and punitive damages for breach of warranty, breach of contract, and fraud. On the fraud count, they complained that appellees’ improper weighing practices caused appellants to be paid less than they were owed. The thrust of their allegations was that appellees allowed turkeys arriving at the plant to remain on the trucks too long, causing significant shrinkage and death of turkeys; that appellees charged appellants with all dead-on-arrival turkeys without regard to fault; and that appellees improperly weighed condemned parts and carcasses. Appellants did not state a specific time period during which the abovementioned fraudulent conduct took place. However, they alleged that, beginning in 1983 and ending in March 1992, appellees concealed their misconduct so as to prevent appellants from becoming aware of their cause of action.
Appellants’ lawsuit is one of many that have been filed by turkey growers against Swift since 1992. Two of the prior lawsuits that are of particular interest in this case are Jennings v. Swift-Eckrich, filed in federal court in Arkansas in 1993, and Taylor v. Swift-Eckrich, filed in federal court in Arkansas in 1994. In Jennings, the plaintiffs attempted certification of a class that would likely have included many of the appellants herein, but certification was denied. There is no conclusive evidence in the record before us that appellants had actual knowledge of the Jennings class-action attempt. In Taylor, certification of a similar class was attempted, and certification was granted in 1996. Appellants were notified as potential class members in approximately November 1996, but opted out, choosing instead to file the lawsuit that is the subject of this case.
*350On May 25, 1999, appellees filed a motion for summary judgment. They argued that the complaint that appellants filed against them in 1998 was barred by the three-year statute of limitations applicable to fraud. Appellants responded that genuine issues of fact remained as to whether appellees had fraudulently concealed appellants’ cause of action, thus tolling the limitation period until they discovered appellees’ misconduct in November 1996, upon receiving notice of the Taylor class action.
Appellants and appellees attached over sixty exhibits to their pleadings filed in connection with the motion for summary judgment. Appellees used their exhibits to emphasize their claim that appellants either knew or should have known of the cause of action for fraud before November 1996. Included among those exhibits were the depositions of Hugh McClain and Kirk Powell. In McClain’s deposition, he stated that the existence of the Taylor class action was common knowledge in the poultry industry prior to the time that notice of it was received and that he verified his belief that Swift was engaging in misconduct at the time another turkey grower’s lawsuit was filed in 1992. In Powell’s deposition, he stated that, at a November 1996 meeting with growers who were potential class members in the Taylor suit, the attorney speaking to the group expressed concern about the statute of limitations and agreed that “everyone in the room” knew about Swift’s incorrect weighing practices and questions regarding condemnation calculations. Appellees also attached as exhibits the pleadings in several lawsuits that other turkey growers had filed against Swift. Between 1992 and 1996, approximately thirty such suits were filed, based upon allegations the same as or similar to those in this case. Other than the Jennings and Taylor cases previously mentioned, the most prominent of the suits was Jackson v. Swift-Eckrich, Inc., filed in federal court in Arkansas by two individual growers in 1992. The suit resulted in a $341,500 verdict in favor of the growers in August 1993. The verdict was reported in newspapers throughout northwest Arkansas, and appellees attached copies of the newspaper articles to their motion. Appellees also attached excerpts from the trial testimony in the Jackson case in which two growers, Bill Jackson and Jack Greer, stated that they had been permitted to observe the weighing process at the Swift plant.
In response to appellees’ summary-judgment motion, appellants filed approximately forty affidavits stating that they were unaware until they received notice in the Taylor lawsuit in November 1996 that Swift was engaging in the improper practices set forth in their complaint. Approximately eight of the affiants stated that they *351suspected wrongdoing earlier, but did not actually learn of it until 1996 or later. All but one also stated that they had not read the newspaper articles that reported the 1993 Jackson verdict. Appellants also attached numerous investigative reports and letters of correspondence between Swift and the Packers and Stockyards Administration (hereafter “the PSA”), the federal agency charged with regulating packers such as Swift, pursuant to the Packers and Stockyards Act. See 7 U.S.C.A. §§ 181 to 229 (1999 & Supp. 2000). Those exhibits reveal that, as early as 1984, Swift’s weighing practices and turkey marketing contracts had come under PSA scrutiny. The PSA was particularly concerned that Swift was allowing turkeys to remain on trucks too long before they were weighed and that Swift was improperly computing the weight of condemned carcasses, parts, and dead-on-arrival birds. Swift informed the PSA at that time that it believed its practices were proper and that the hauling of birds to the plant in a timely manner was the responsibility of the growers. Its practices continued until at least 1989, and possibly 1992, when Swift put certain procedures into place that apparently satisfied the PSA.
Additionally, appellants attached the affidavit of an economist, Dr. Leonard White. Dr. White stated that he had been working on cases involving Swift and its growers for over four years. He conducted an examination of the weighing tickets issued by Swift and determined that a great deal of variation was found in the tare (empty) weights for each trailer. His conclusion was that the large variations could only be explained by deliberate manipulation. He examined approximately 5,891 tickets to reach his conclusion and stated that it was only after he had examined thousands of tickets that he became aware of the possibility of deliberate manipulation. In his opinion, an individual grower would not have been able to recognize the manipulation that occurred. Finally, appellants referenced the trial testimony of Jack Greer in the Jackson case in which Greer stated that he had observed Swift employees estimating the weight of parts rather than weighing them on a scale.
Following two hearings, the trial judge granted appellees’ motion for summary judgment. Appellants bring their appeal from that ruling. In summary-judgment cases, we need only decide if the granting of summary judgment was appropriate based upon whether the evidentiary items presented by the moving party in support of the motion left a material question of fact unanswered. Inge v. Walker, 70 Ark. App. 114, 15 S.W.3d 348 (2000). The burden of sustaining a motion for summary judgment is always the responsibility of the moving party. Id. All proof submitted must be viewed *352in a light most favorable to the party resisting the motion, and any doubts and inferences must be resolved against the moving party. Id.
The statute of hmitations for fraud is three years. Ark. Code Ann. § 16-56-105 (1987); Hampton v. Taylor, 318 Ark. 771, 887 S.W.2d 535 (1994). The limitation period begins to run, in the absence of concealment of the wrong, when the wrong occurs, not when it is discovered. Hampton v. Taylor, supra. Appellants do not argue that appellees engaged in any conduct giving rise to a cause of action for fraud within the three years preceding the filing of the complaint. Rather, they contend that, through March 1992, appellees concealed their fraud, thus tolling the hmitations period until November 1996, when appellants learned of appellees’ alleged misconduct.
A concealed fraud suspends the running of the statute of hmitations, and the suspension remains in effect until the party having the cause of action discovers the fraud or should have discovered it by the exercise of reasonable diligence. SEECO v. Hales, 341 Ark. 673, 22 S.W.3d 157 (2000). No mere ignorance on the part of the plaintiff of his rights, nor the mere silence of one who is under no obligation to speak, will prevent the statute bar. Chalmers v. Toyota Motor Sales, USA, Inc., 326 Ark. 895, 935 S.W.2d 258 (1996). There must be some positive act of fraud, something so furtively planned and secredy executed as to keep the plaintiffs cause of action concealed or perpetrated in such a way that it conceals itself. Id. If the plaintiff, by reasonable diligence, might have detected the fraud he is presumed to have had reasonable knowledge of it. Id. Although the question of fraudulent concealment is usually a question of fact that is not suited for summary judgment, when the evidence leaves no room for a reasonable difference of opinion, a trial court may resolve fact issues as a matter of law. Id.; Smothers v. Clouette, 326 Ark. 1017, 934 S.W.2d 923 (1996).
The numerous exhibits referenced above show that issues of fact remain on the matter of whether Swift engaged in positive acts of fraud to conceal improper weighing procedures and on the matter of whether appellants exercised due diligence in discovering the existence of these improper procedures. Swift was required by law to prepare true and accurate settlement .sheets, i.e., final accountings, for growers at the time of settlement. See 9 C.F.R. § 201.100(b) (1994). Such setdement sheets, as shown by a sample abstracted by appellants, contain, among other information, the condemnation weights and the weight of parts. Based upon Jack *353Greer’s testimony, there is some evidence that Swift did not accurately weigh parts, and thus would have issued inaccurate settlement sheets. Further, Dr. White’s affidavit is evidence that Swift may have deliberately manipulated its weight tickets.2 In Randles v. Cole, 68 Ark. App. 7, 2 S.W.3d 90 (1999), we held that a false disclosure form provided to a buyer in a real estate case could be a positive act of fraud sufficient to toll the statute of limitations. Similarly, in this case, the issuance of documents that inaccurately reflected the weight of appellants’ product or trailers could be evidence of artifice engaged in by Swift to conceal its improper weighing practices and prevent appellants from learning of their cause of action.
As to the question of whether appellants should have discovered their causes of action before November 1996, the trial judge made no express finding on this issue, having already ruled that there was no fraudulent concealment by Swift. However, because we have decided to reverse and remand the grant of summary judgment on the issue of fraudulent concealment, we briefly address the issue of due diligence so that there will be no confusion upon remand. Swift argues that the existence of numerous lawsuits by other growers and the reporting of the lawsuits in the newspaper should have alerted appellants to their cause of action. However, there is nothing in Swift’s exhibits to indicate that, as a matter of law, appellants should have been aware of the basis of the allegations made against Swift in the other lawsuits. Further, all appellants except one deny seeing the newspaper articles Swift attached to its motion. When a plaintiff denies knowledge of a newspaper article, it is improper to hold, as a matter of law, that he knew or should have known of the article’s contents. See Hickson v. Saig, 309 Ark. 231, 828 S.W.2d 840 (1992). Additionally, in order to resolve this issue in favor of appellees, the trial judge would have had to determine that appellants’ representations in their affidavits were not credible. Summary judgment is not proper where it is necessary to weigh the credibility of statements to resolve an issue. See Bennett v. Trout, 297 Ark. 202, 760 S.W.2d 850 (1988). Swift also argues that appellants could have observed the weighing process at the Swift plant themselves and thus discovered any alleged improprieties. However, a fact question exists as to whether the constant observation of Swift’s weighing procedures is the type of diligence that is called for in this situation.
*354The final issue we address concerns Swift’s argument that any tolling of the statute of limitations due to fraudulent concealment ceased in 1993 when class certification was attempted in the Jennings case. It argues that, upon the fifing of the class action in Jennings on September 3, 1993, appellants, as members of the proposed class, were deemed to be actively pursuing their claim against Swift. We disagree with Swift on this issue. First, we point out that none of the appellants herein were parties to the Jennings action, nor is there conclusive evidence that they had actual knowledge of the action. Secondly, we disagree with Swift’s interpretation of Doe v. Blake, 809 F. Supp. 1020 (D. Conn. 1992), upon which its argument is based. It is true that the court in Blake recognized that a class member is deemed to be actively prosecuting his rights during the time class certification is under consideration. However, the Blake court was making a general statement and was not concerned with the issue of fraudulent concealment. It would thwart the intent of our law to say that, despite a defendant’s fraudulent concealment, a limitations period begins running and continues to run when a class action is filed in which the plaintiff neither joins nor opts out.
Reversed and remanded.
Stroud, C.J., and Jennings, Robbins, Griffen, Neal, and Vaught, JJ., agree.
CRABTREE, J., concurs in part and dissents in part.
BIRD, J., dissents.