Authorities say the roof of a privately run East Texas prison has collapsed, temporarily trapping dozens of inmates and sending 19 injured inmates to hospitals. One of those inmates was later airlifted to Memorial Hermann Hospital in Houston after today's collapse at Diboll Correctional Center, about 100 miles northeast of Houston. In a statement, a prison spokesman said the other inmates suffered cuts and bruises when wallboard fell from the ceiling of a housing area at the prison about 11:30am. Officials are trying to determine the cause. (More prison stories.)