CHICAGO – A manhunt for two bank robbers who used a makeshift rope to pull off a daring escape from a high-rise Chicago lockup pushed into a second day Wednesday, with authorities offering a $50,000 reward for information leading to the men’s apprehension.

The former cellmates apparently broke a cell window, pulled out the bars then descended almost 20 stories to escape the downtown Metropolitan Correctional Center early Tuesday.

Joseph “Jose” Banks, 37, and Kenneth Conley, 38, were unaccounted for during a 5 a.m. headcount, according to the U.S. Marshals Service. An FBI affidavit says the men were in their assigned areas for a head count around 10 p.m. Monday and that jail employees noticed the makeshift rope around 7 a.m. Nearby business owners said helicopters and canine units did not swarm the area until almost 8:30 a.m.