Narin Prasert Vong appeals the district court’s 1 denial of his motion for a new trial under Federal Rule of Criminal Procedure 33. The district court’s decision rests on credibility determinations, which we have not been persuaded to disturb; hence, we find no abuse of discretion. See United States v. Grey Bear, 116 F.3d 349, 350-51 (8th Cir. 1997). Accordingly, we affirm the judgment of the district court, and we deny as moot Vong’s motion for release pending appeal.