Investigators searching for a man they say shot and killed four people at a Montana bar Friday morning have located the vehicle he fled in, but the suspect remains on the loose, officials said.

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

A manhunt is underway after a deadly shooting inside a Montana business on Friday. Four people were killed at The Owl Bar in Anaconda, according to the Montana Division of Criminal Investigation. Police identified Michael Paul Brown, 45, as the suspect.