PER CURIAM.
Quintín Adkins appeals the district court’s dismissal of Adkins’s 28 U.S.C. § 2241 petition in which he sought credit against his federal heroin-trafficking sentence for time spent in official custody from April 24, 1997, through August 3, 1999—the day his sentence was imposed. Following careful review, we conclude the district court properly denied section 2241 relief for the reasons expressed in the court’s opinion.
In his objections to the magistrate’s report, and on appeal, Adkins argues he also was seeking credit for an earlier period beginning in December 1996, when he was arrested on the drug offense. Further, he insists he was in official detention between January 2 and February 28, 1997, when he was under twenty-four-hour supervision at a community correction center. Having reviewed the record, we find no indication that Adkins exhausted administrative remedies on these additional claims, and thus they are not properly raised at this time. See United States v. Chappel, 208 F.3d 1069, 1069-70 (8th Cir.2000) (per curiam) (federal prisoners seeking jail-time credit must exhaust administrative remedies before seeking habeas relief).
We affirm the dismissal of Adkins’s petition, but we clarify the dismissal is without prejudice to any future claim for pretrial-custody credit about a period other than April 24, 1997, through August 3, 1999.
A true copy.
The Honorable James M. Moody, United States District Judge for the Eastern District of Arkansas, adopting the report and recommendations of the Honorable J. Thomas Ray, United States Magistrate Judge for the Eastern District of Arkansas.