NEW ORLEANS — Jury selection is under way in the trial of two New Orleans police officers charged with lying about a man’s shooting death outside the city’s convention center in Hurricane Katrina’s aftermath, The Associated Press has reported.

The trial of officers Raymond Mitchell and Ray Jones is expected to last about a week. The case is one of several arising from U.S. Justice Department investigations into alleged misconduct by police after Katrina. Mitchell and Jones are not charged in the shooting; they are charged with obstruction of justice and perjury. Each faces up to 20 years in prison if convicted.

Defense lawyers on Monday asked that the trial be postponed. They said prosecutors were late in sharing evidence. But U.S. District Judge Sarah Vance refused.