St. Louis (KSDK) - Police are investigating a downtown St. Louis bank robbery.

The U.S. Bank at Tucker and Olive was robbed Tuesday shortly before 2 p.m. Tuesday

The suspect walked into the bank and handed the teller a note. He indicated he had a weapon, but he did not display one.

He fled on foot, hopped on a MetroLink train, and was taken into custody near the Greyhound/Amtrak station about 30 minutes later.

Police charged Patrick Cook with first-degree robbery.

Cash-only bond is set at $80,000.

KSDK