Maciel M. Roman, federal prisoner #33878-180, appeals the district court’s dismissal of his 42 U.S.C. § 1983 suit against the El Paso County Detention Center as well as the district court’s dismissal of his motion seeking an order of protection with respect to Bureau of Prison (BOP) officials. The district court dismissed the § 1983 suit on the basis that Roman had failed to exhaust his administrative remedies. The court denied the motion regarding the BOP officials for lack of jurisdiction.

Roman’s brief does not address either the district court’s conclusion that Roman did not exhaust his administrative remedies or that it lacked jurisdiction to consider his motion for an order of protection. Roman addresses only the underlying merits of his claims. Accordingly, he has abandoned the only issues on appeal. See Yohey v. Collins, 985 F.2d 222, 224-25 (5th Cir. 1993); see also Brinkmann v. Dallas County Deputy Sheriff Abner, 813 F.2d 744, 748 (5th Cir. 1987). Although we construe a pro se litigant’s pleadings liberally, even pro se litigants must identify errors and brief the relevant issues. See Yohey, 985 F.2d at 224-25.

Accordingly, we dismiss the appeal as frivolous. See Howard v. King, 707 F.2d 215, 220 (5th Cir. 1983); 5th Cir. R. 42.2. The dismissal of this appeal as frivolous counts as a strike for purposes of 28 U.S.C. § 1915(g). We caution Roman that *590 if he accumulates three strikes under 28 U.S.C. § 1915(g), he will not be able to proceed in forma pauperis in any civil action or appeal filed while he is incarcerated or detained in any facility unless he is under imminent danger of serious physical injury.

APPEAL DISMISSED; SANCTION WARNING ISSUED.