Law enforcement officials engaged in a growing manhunt for the suspect, who lived close to the bar. They warned that he was believed to be armed.

Authorities have launched a manhunt after a shooting at a Montana bar left four people dead. State investigators said the shooting happened Friday morning at The Owl Bar in Anaconda.

A suspect is on the run after multiple people were shot in the US state of Montana, authorities say. The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) said it was "responding to a shooting where multiple parties have been shot at a business in Anaconda, MT".