Francisco Barrera-Diaz (Barrera), federal prisoner no. 38552-004, filed a petition for habeas corpus under 28 U.S.C. § 2241 in the Southern District of Mississippi, where he is incarcerated for drug-trafficking and firearm convictions. He contends that his firearm conviction is invalid under Bailey v. United States, 516 U.S. 137, 116 S.Ct. 501, 133 L.Ed.2d 472 (1995).

The district court correctly construed the petition as a successive motion under 28 U.S.C. § 2255 because Barrera has filed a previous motion and again attacks his conviction and sentence. See Tolliver v. Dobre, 211 F.3d 876, 877-78 (5th Cir. 2000). The district court also correctly determined that Barrera’s petition is not permitted by the “savings clause” of 28 U.S.C. § 2255 because Barrera was able to assert his Bailey claim in a prior motion. See 28 U.S.C. § 2255; Reyes-Requena v. United States, 243 F.3d 893, 904 (5th Cir. 2001). The district court *475 lacked jurisdiction over Barrera’s successive motion because it could be filed only if authorized by the Eleventh Circuit Court of Appeals and only in the Southern District of Florida, where Barrera was convicted. See 28 U.S.C. § 2255.

The appeal is frivolous, and it is dismissed. See Howard v. King, 707 F.2d 215, 219-20 (5th Cir. 1983); 5th Cir. R. 42.2. Further frivolous filings will subject Barrera to sanctions.

APPEAL DISMISSED; SANCTION WARNING ISSUED.