Police are investigating an armed robbery Friday morning in Boulder.

Just after midnight Friday, police were called to the 3200 block of Euclid Avenue for an altercation between a group of men, according to a release. One of the men allegedly held a gun, but no shots were fired.

Three gunmen involved in the altercation fled on foot, but officers were able to arrest one. Two others remain at large.

One was described as a teenage to college-age male who is about 5 feet 10 inches and of thin build. He is believed to have been wearing a black hoodie and gray trousers. The second party involved is believed to be a man wearing a white shirt and black pants.

The arrested man faces two counts of menacing and one count of obstruction.

Police ask that anyone with information regarding this crime or the locations of the suspects contact police at 303-441-3333. Anonymous information can be shared by calling Safe2tell at 877-542-7233 or CrimeStoppers at 1-800-222-TIPS (8477).