Investigators searching for a man they say shot and killed four people at a Montana bar Friday morning have located the pickup truck he fled in, but the suspect — believed to be armed and dangerous — remains on the loose,

The search for the suspect, identified as Michael Paul Brown, continued into the weekend. Authorities have warned that he is armed and dangerous.

Authorities found a truck used by a suspect in the shooting deaths of four people at a bar, the bartender and three patrons, in a small town in western Montana.