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".

A shooting at a Montana bar left four dead Friday, prompting a lockdown in a neighborhood several miles away as authorities searched for the suspect.

A shooting at a Montana bar Friday left four people dead, and law enforcement officers were searching for a suspect described by his niece as a former U.S. soldier who struggled to get help for mental health problems.