Parts of a national forest near Anaconda, Montana, were closed late Saturday as authorities expanded their search for the gunman accused of killing four people at a bar on Friday morning.

Four people were killed in the attack inside the Owl Bar in Anaconda, Mont. The authorities are still searching for the suspect, an Army veteran who lived nearby.

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.