Nebraska Inmate Escapee Caught, One Other Remains at Large

One of the convicted sex offenders who escaped from a Nebraska prison has been caught, but the other is still on the loose, police said today.

Armon Dixon was taken into custody a few hours after police received a call that a man with a hammer wrapped in a T-shirt had assaulted two women in an apartment complex in northeast Lincoln. Witnesses later reported seeing a man sprint into a tunnel along Deadman's Run near 48th Street. The second inmate escapee, Timothy Clausen, remains at large, Lincoln police said.

Dixon, 37, and Clausen, 52, were declared escapees Friday afternoon when neither were present for an inmate count at the Lincoln Correctional Center, according to the Nebraska Department of Correctional Services. Lincoln Correctional is medium/maximum prison. It is unclear how the men escaped.

Both Dixon and Clausen were convicted of sexual assaults, their criminal records show. Police said the men are considered dangerous and should not be approached.

Escape procedures were activated, and state and local police agencies were notified, officials said. It is possible the men took shelter at an unoccupied home in the area south of Lincoln, ABC News affiliate KLKN-TV in Lincoln reported.

Around 9:30 a.m., a 911 call reported that two men wearing tan pants and gray shirts were running north on U.S. Highway 77, Omaha.com reported. The clothing was "very similar" to what Nebraska state inmates wear, the Lancester County Sheriff's Office told Omaha.com.

ABC News' Benjamin Stein and Julia Jacobo contributed to this report.