SPOKANE, Wash. -

Spokane Police and the FBI are investigating the robbery of a Washington Trust Bank branch where three men entered the bank and demanded cash at gunpoint.

The robbery happened at the branch located at 3810 N. Maple at 9:30 a.m. Friday.

Witnesses told police that three black males in their 20s with medium builds and wearing ski masks entered the building and demanded money. All three of those suspects were armed, were given an undisclosed amount of money and took off. The bank employees were shaken up but police say they handled the situation exactly the way you should.

"Cooperation. We don't want anybody to get hurt. The best thing you can be is a witness so look for descriptors or license plates anything you know color of skin, height, all of those things help us out," Spokane Police Lieutenant Alan Arnzen said.

Witnesses also told police they thought they saw the suspects leave in a vehicle parked a few blocks away.

Detectives are also investigating whether or not Friday's robbery is connected to the robbery of the U.S. Bank branch just a mile away at 3900 N. Lincoln on Dec. 20. That bank was held up in a similar fashion and the suspects in that robbery were two black men.

Police are hoping through their investigation into Friday's robbery to not only catch the suspects but determine whether or not the two heists are connected.

"We'll pull the video and see if they were wearing gloves and see if there is evidentiary stuff that we can collect and once we get some good pictures we will put those out to the media," Arnzen said.

Anyone with information on either robbery is asked to call Crime Check at 456-2233.