TULSA, OK -- Tulsa Police are seeking help in finding a man who robbed a bank Wednesday evening. 

Detectives say he robbed the Arvest Bank at 15th and Utica just before closing. 

Officers say the man waived a gun and demanded money. 

No shots were fired and no customers were the inside the bank at the time. 

The man was wearing a thin black jacket with a gray hooded sweatshirt over the top of it.  He had a goatee and was wearing sunglasses.

If you know anything about the robbery, call Crime Stoppers at 596 COPS.