(CNN) One of two Nebraska prison escapees was found hiding in a storm drain over the weekend, but the second one remains on the run. Timothy Clausen, 52, and Armon Dixon, 37, escaped from the Lincoln Correctional Center on Friday, police said. It's unclear how they escaped. Both are serving long prison sentences for violent crimes and are considered dangerous, according to Lincoln police. A day after they escaped, a man matching Dixon's description was seen entering a storm drain in Lincoln, police said. Dogs, robot find inmate Police used dogs and a robot to locate him in the drain, where he was arrested without incident Saturday.Both are serving long sentences for violent crimesAnyone with information is urged to call 911 -- not confront the escapee
Shortly before Dixon's arrest, police responded to a call of a physical assault at a home in _. Authorities said two women at the home gave the description of a suspect who matched _.