Roy Steve Davis, federal prisoner number 16159-083, appeals from the district *929 court’s dismissal of his action under Bivens v. Six Unknown Named Agents of Fed. Bureau of Narcotics, 403 U.S. 388, 91 S.Ct. 1999, 29 L.Ed.2d 619 (1971). Davis primarily alleged that he was denied due process in a disciplinary hearing wherein he was found guilty of assault and that he was subjected to assaults by other inmates, toxic gas, and overcrowding. The district court dismissed the suit without prejudice because of Davis’s failure to exhaust administrative remedies.

Davis argues that he did exhaust his administrative remedies with respect to the assault adjudication. The district court held, and the record shows, that Davis exhausted his administrative remedies after filing the instant law suit. We conclude that the district court did not err in dismissing this claim. See Underwood v. Wilson, 151 F.3d 292, 296 (5th Cir. 1998); 42 U.S.C. § 1997e(a). Davis makes no argument that he exhausted his administrative remedies with respect to his claims concerning other assaults, toxic gas, and overcrowding. Those claims are deemed abandoned. See Yohey v. Collins, 985 F.2d 222, 224-25 (5th Cir. 1993). Moreover, the record does not show that Davis exhausted these claims through the Bureau of Prisons’ administrative process. See 28 C.F.R. §§ 542.10, 542.14, 542.15.

AFFIRMED.