The robbery happened around 3:45 Tuesday afternoon.
Police say a man walked up to a teller and demanded money.
The suspect is described as a white male with a pony tail wearing glasses. Police say he left in a white SUV that was in the parking lot.
The man was not seen with a weapon and there were no injuries reported. Police and FBI were on scene for several hours talking to witnesses inside the building. There is no information on how many people were inside when the robbery happened.
If you have any information call Crimeline at 741-1000.
Stay with EverythingLubbock.com and KAMC News for more as this story develops.