The Paso Robles Police Department is investigating a robbery at Pacific Premier Bank.
It happened shortly after 1 p.m. Monday at the bank branch on 12th Street.
Police say the male suspect, who was armed with a handgun, demanded money from the teller and took off with an undisclosed amount of cash.
A witness told KSBY News the robber also grabbed a bag of deposit money from her as she was walking toward the bank and he was fleeing.
Police say the robber was wearing jeans, a blue long-sleeve shirt, a scarf, fedora-style hat with a skull on the side, gloves, and a mask resembling an elderly man.
He reportedly exited the bank through the back door and was last seen running through an alley toward 13th St.
Authorities searched the area by ground and by air but were unable to locate the robber.
Investigators ask anyone with information about this incident to call the Paso Robles Police Department at (805) 237-6464.