OKLAHOMA CITY -- Authorities are offering a $20,000 reward for information leading to the arrest and conviction of two men accused of robbing an Oklahoma City Bank of the West and locking two employees in a bank vault.

Authorities said two black males entered the bank at 5401 N.W. 23rd Street and demanded money. The armed suspects forced two employees into the bank vault, bound them and assaulted one of them.

The robbery is being investigated by the FBI and the Oklahoma City Police Department. Anyone with information should call the FBI at (405) 290-7770 (24 hour number). You may remain anonymous.