Seven Louisiana inmates who were moved from Jefferson Parish after Hurricane Katrina to the Morehouse Parish jail escaped early Monday but one was back in custody, authorities said. Michael Robinson, 19, was arrested in Gretna, said Deputy Chief Mike Tubbs. He did not provide details about the arrest.

Tubbs said officials believe the other suspects also are in the New Orleans area. On the loose are Keith Wilson, 25; Reginald Bradley, 18; Joshua O'Neal, 18; Terrance Williams, 18; Joseph Oakes, 27; and Ryan M. Powe, 18.

The men apparently left a dorm room, climbed up to the jail's roof and crossed a fence to leave the prison's property, Tubbs said. One or more accomplices also were likely involved in the escape, he said. Reportedly, correspondents have suggested that the escapees might have had assistance from people in the New Orleans area.

In addition to other charges, Powe was serving time on a second-degree murder charge, while Wilson and Williams were convicted of attempted second-degree murder. Bradley and Oakes were serving time for armed robbery and other violations, while O'Neal was in jail on a probation violation and drug charges. Each of the inmates will face simple escape charges once back in custody, Tubbs said.