According to police, the suspect showed the teller a gun that was tucked into his waistband.
The teller complied with the robber's demands and gave him an undisclosed amount of money. The suspect then left the bank through a back door and headed in an unknown direction.
The suspect is described as a white male between 37 and 40 years old, about 5 feet 10 inches tall, weighing around 160 pounds. He was seen wearing a dark-colored baseball hat and had a goatee.
If you have any information about this crime, you're urged to contact the Ventura Police Department or Crime Stoppers at 1-800-222-TIPS.