Four people were killed in a shooting at a Montana bar and law enforcement are searching for a suspect described by his niece as a former U.S. soldier who struggled to get help for mental health problems.

ANACONDA, Mont. (AP) — Four people are dead in a shooting at a Montana bar as a search continues for the suspect, authorities say. The suspect is believed to still be armed, the Montana Highway Patrol said in a statement.

Four people were killed in a shooting at a bar in Anaconda, Montana, on Friday, authorities said. A suspect is at large.