Michael Paul Brown, 45, fled The Owl Bar in the small town of Anaconda in a white pickup truck but ditched it at some point, officials said.

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.

The search for the suspect continued in the mountains just west of Anaconda, where he is accused of fatally shooting four people, officials said.