It happened around 2:45 Monday afternoon at the Maine Highlands Federal Credit Union.
Police say a man wearing a dark colored, hooded sweatshirt and mask walked in and held what appeared to be a gun in the air.
He didn’t threaten anyone, he just told the clerks what he wanted and went to each clerk and got some money before running out the door.
He fled into some woods and got away before police could find him.
The FBI has since joined the hunt, and hopes that anyone with information about the robbery will call authorities immediately.
People describe the man as between five-seven and five-ten, wearing a hooded sweatshirt and backpack.
If you have any information on this robbery, you can contact the Piscataquis Sheriff’s Department at 207-564-3304.