LINCOLN, Neb. (AP) — Nebraska’s corrections director says two inmates escaped from a Lincoln prison because staff members failed to follow multiple written procedures.

Corrections Director Scott Frakes said Monday that Lincoln Correctional Center employees failed to have shift supervisors present when inmate workers were moved, didn’t seek managerial approval before placing inmates on a work roster, didn’t conduct an informal hourly head count and didn’t properly supervise laundry carts.

Authorities captured 37-year-old Armon Dixon in Lincoln on Saturday, but 52-year-old Timothy Clausen remains at large. Authorities say they received a report Sunday that Clausen was in north Omaha, and they’re searching homes in that area.

Gov. Pete Ricketts says state officials will make available whatever resources are needed to catch Clausen. He says officials will conduct an investigation to learn where security failed.