Terry J. Harrington and Curtis W. McGhee, Jr. (collectively, appellees) sued various defendants, including police officers Daniel C. Larsen and Lyle W. Brown (officers), under 42 U.S.C. §§ 1983 and 1985 and state law. The appellees claimed the defendants violated the appellees’ rights during the Iowa state investigation and prosecution of the appellees for murder. The officers moved for summary judgment, asserting they are entitled to qualified immunity on the appellees’ claims that can be defeated if the officers had probable cause to arrest the appellees. The officers appeal the district court’s denial of their motion. We reverse and remand for further proceedings on the appellees’ remaining claims.
I. BACKGROUND
A. Factual Background1
In 1978, the appellees were convicted and sentenced to life imprisonment without parole for murdering John Schweer, a retired police officer who was working as a security guard at a car dealership. In 2002, the Iowa Supreme Court vacated Harrington’s conviction and remanded the case for a new trial because the prosecutor violated Harrington’s due process rights in failing to disclose exculpatory evidence in compliance with Brady v. Maryland, 373 U.S. 83, 83 S.Ct. 1194, 10 L.Ed.2d 215 (1963). The new prosecutor decided not to retry Harrington and agreed to vacate McGhee’s conviction. McGhee pled guilty, pursuant to North Carolina v. Alford, 400 U.S. 25, 91 S.Ct. 160, 27 L.Ed.2d 162 (1970), to second-degree murder in exchange for a sentence of time served.
*678B. Procedural History
The appellees sued the officers, the prosecutors, Pottawattamie County, Iowa (County), and the City of Council Bluffs, Iowa under 42 U.S.C. §§ 1983 and 1985 and state law. The appellees generally contend the officers investigated them without probable cause to suspect them of the murder, knew the main prosecution witness had lied, coerced witnesses into lying in order to frame the appellees for murder, concealed this fact, and hid exculpatory evidence. As relevant to this appeal, the appellees argue these actions violated § 1983 by violating their (1) Fourth and Fourteenth Amendment rights against unreasonable seizure; (2) Fifth and Fourteenth Amendment rights not to be deprived of their liberty without due process of law; and (3) Fourteenth Amendment right to equal protection of the laws by targeting them because they are African-American. Both appellees also alleged the officers and prosecutors conspired to deprive the appellees of equal protection of the laws, in violation of 42 U.S.C. § 1985. Harrington further contends the officers violated his First and Fourteenth Amendment rights to freedom of association and Sixth and Fourteenth Amendment rights to a fair trial. The appellees’ cases were consolidated.
In 2007, the district court found the officers were entitled to qualified immunity regarding their failure to disclose exculpatory evidence because any failure did not violate a right that was clearly established when the appellees were prosecuted. See McGhee v. Pottawattamie Cnty., Iowa, 475 F.Supp.2d 862, 911 (S.D.Iowa 2007), aff'd in part, rev’d in part, 547 F.3d 922 (addressing only the prosecutors’ appeal from the district court’s disposition of their motions in the same order). The district court also determined a reasonable jury could find the officers (1) lacked probable cause to arrest the appellees for murder, and (2) violated the appellees’ due process rights by fabricating evidence. Id. at 890, 910, 913. The officers did not appeal these determinations. See generally McGhee, 547 F.3d at 925-26.
The appellees settled their claims against the County and the prosecutors. The district court dismissed the state-law claims as time barred.
In May 2010, the officers moved for judgment on the pleadings, maintaining the federal claims were untimely because they were akin to the tort of false imprisonment. The district court noted whether accrual of the § 1983 claims is based on false imprisonment rules or on malicious prosecution rules depends upon which of those torts most closely resembles the claims. See Wallace v. Kato, 549 U.S. 384, 388-89, 127 S.Ct. 1091, 166 L.Ed.2d 973 (2007) (false imprisonment); Heck v. Humphrey, 512 U.S. 477, 484, 489-90, 114 S.Ct. 2364, 129 L.Ed.2d 383 (1994) (malicious prosecution). The district court determined, if the appellees’ claims are more similar to false imprisonment, the claims accrued when the appellees were charged with murder in 1978 — and therefore the claims were brought well after the applicable two-year statute of limitations expired. See Wallace, 549 U.S. at 389, 127 S.Ct. 1091 (“[A] false imprisonment ends once the victim becomes held pursuant to [legal] process.”). However, the district court denied the officers’ summary judgment motion, finding the appellees’ claims were more “in the nature of malicious prosecution,” and, therefore, did not accrue until the appellees’ convictions were vacated. Because the appellees sued within two years of their convictions being vacated, the district court determined the appellees complied with the applicable statute of limitations.
*679The officers again moved for summary judgment, arguing they were entitled to qualified immunity on the claims that could be defeated by showing probable cause because they had probable cause to believe the appellees had stolen cars. The district court disagreed, deciding the officers were not entitled to qualified immunity because they did not have probable cause to suspect the appellees of committing the crime with which they were charged — Schweer’s murder. The officers timely appealed.
II. DISCUSSION
We have jurisdiction over this interlocutory appeal under 28 U.S.C. § 1291 and the collateral order doctrine. See Ashcroft v. Iqbal, 556 U.S. 662, 670-72, 129 S.Ct. 1937, 1945-46, 173 L.Ed.2d 868 (2009). Our review of the district court’s denial of summary judgment is de novo. See Morrison Enters., LLC v. Dravo Corp., 638 F.3d 594, 602 (8th Cir.2011). ‘“Summary judgment is appropriate [if] the record, viewed in the light most favorable to [the appellees], demonstrates that there is no genuine issue of material fact and [the officers are] entitled to judgment as a matter of law.’ ” Id. (quoting Myers v. Lutsen Mtns. Corp., 587 F.3d 891, 893 (8th Cir.2009)). “Qualified immunity is an affirmative defense for which the defendant carries the burden of proof. The plaintiff[s], however, must demonstrate that the law is clearly established.” Sparr v. Ward, 306 F.3d 589, 593 (8th Cir.2002).
It is unclear what seizure appellees rely upon for their Fourth Amendment claims. If appellees assert their arrest was the relevant seizure, then their claim is for false arrest. Or if appellees maintain the “sum of post-arraignment deprivations” was the relevant seizure, their claim is for malicious prosecution. See Nieves v. McSweeney, 241 F.3d 46, 54 (1st Cir.2001). On appeal, the officers argue the district court converted the appellees’ claims into a malicious prosecution claim.2 Sufficient probable cause would defeat the appellees’ § 1983 claims based on malicious prosecution and would not affect the appellees’ remaining claims.3
If malicious prosecution is a constitutional violation at all, it probably arises under the Fourth Amendment.4 See Al- *680 bright v. Oliver, 510 U.S. 266, 271, 275, 114 S.Ct. 807, 127 L.Ed.2d 114 (1994) (plurality opinion); see also id. at 275-76, 114 S.Ct. 807 (Sealia, J., concurring); id. at 276, 114 S.Ct. 807 (Ginsburg, J., concurring); id. at 281, 114 S.Ct. 807 (Kennedy, J., concurring); id. at 286-91, 114 S.Ct. 807 (Souter, J., concurring). The dispositive issue on appeal is whether the officers are entitled to qualified immunity on the appellees’ Fourth Amendment claims based on malicious prosecution.
The officers assert qualified immunity on those claims requiring the appellees to show the officers acted without probable cause. Officials being sued under § 1983 are entitled to qualified immunity for actions that did not violate a clearly established constitutional right at the time of the alleged violation such that reasonable officials acting in the officials’ position would not have understood they were violating that right. See Pearson v. Callahan, 555 U.S. 223, 236, 129 S.Ct. 808, 172 L.Ed.2d 565 (2009) (holding a court may analyze the two prongs of the Saucier v. Katz, 533 U.S. 194, 201-02, 121 S.Ct. 2151, 150 L.Ed.2d 272 (2001), test — (1) a constitutional right (2) that is clearly established — in any sequence); Anderson v. Creighton, 483 U.S. 635, 639, 107 S.Ct. 3034, 97 L.Ed.2d 523 (1987).
The Supreme Court in its 1994 Albright opinions declined to decide whether defendants have a Fourth Amendment right against malicious prosecution, but noted that malicious prosecution does not violate the right to substantive due process because “pretrial deprivations [a]re better addressed under the Fourth Amendment and not substantive due process.” Moran v. Clarke, 296 F.3d 638, 646-7 (8th Cir.2002) (en banc) (citing Albright, 510 U.S. at 274-75, 114 S.Ct. 807 (plurality opinion)); see also Albright, 510 U.S. at 283, 114 S.Ct. 807 (Kennedy, J., concurring). Moran distinguishes Albright and holds the Fourth Amendment does not preclude recognizing a substantive due process violation where law enforcement officers go beyond mere prosecution without probable cause and fabricate evidence in order to “falsely formulate a pretense of probable cause.” Moran, 296 F.3d at 647. Our sister circuits have taken a variety of approaches on the issue of whether or when malicious prosecution violates the Fourth Amendment. See, e.g., Nieves, 241 F.3d at 53-54; Singer v. Fulton Cnty. Sheriff, 63 F.3d 110, 116-17 (2d Cir.1995); Lambert v. Williams, 223 F.3d 257, 261 (4th Cir.2000); Castellano v. Fragozo, 352 F.3d 939, 945, 953 (5th Cir.2003); Newsome v. McCabe, 256 F.3d 747, 751 (7th Cir.2001); Pierce v. Gilchrist, 359 F.3d 1279, 1290-91 (10th Cir.2004); Wood v. Kesler, 323 F.3d 872, 881 (11th Cir.2003). We need not enter this debate now.5
Assuming a Fourth Amendment right against malicious prosecution exists, such a right was not clearly established when the appellees were prosecuted in 1977 and 1978. In 1994, the Supreme *681Court described in Albright the “ ‘embarrassing diversity of judicial opinion’ [on] the extent to which a claim of malicious prosecution is actionable under § 1983.” Albright, 510 U.S. at 270 & n. 4, 114 S.Ct. 807 (quoting Albright v. Oliver, 975 F.2d 343, 345 (7th Cir.1992)). The year before the conduct underlying the appellees’ suit occurred, our court stated, “whether a malicious prosecution infringes on protected constitutional rights is undecided.” Sartin v. Comm’r of Pub. Safety of Minn., 535 F.2d 430, 433 (8th Cir.1976). Given this precedent, reasonable officers, in the officers’ position here, could not have known in 1977 or 1978 that malicious prosecution violated appellees’ Fourth Amendment rights.
III. CONCLUSION
The officers are entitled to qualified immunity on any Fourth Amendment malicious prosecution or prosecution without probable cause claims. The district court erred in denying the officers’ motion for summary judgment. We reverse and remand for further proceedings on the appellees’ remaining claims.