Authorities are looking for a man who robbed a gas station convenience store in downtown Baton Rouge early Tuesday evening, fleeing with an undisclosed amount of money.

The man smashed open the cash register after the clerk threw away the keys to the locked register, Baton Rouge Police reported.

The robbery occurred around 5:40 p.m. at the Chevron at 510 St. Ferdinand Street. Police say the robber walked in, demanded money and had his hand inside a green bag as if he were holding a weapon, but never revealed a weapon. The clerk closed and locked the register and threw away the key, prompting the robber to grab the register, smash it on the ground until the cash drawer opened.

Police say the robber is a white male, between 5 feet 6 and 5 feet 8 inches tall, and was wearing a green coat, blue jeans and a dark-colored beanie hat. He was last seen on a mountain bike which also contained a rear bag rack.

Anyone with information on the identity of the robber is urged to contact the Armed Robbery Office at (225) 389-3845 or Crime Stoppers at (225) 344-7867.