A manhunt continues for Michael Paul Brown, 45, who's accused of killing four people after opening fire at The Owl Bar in rural Montana on Aug. 1.

At least four are dead in a shooting happened at about 10:30 a.m. local time at The Owl Bar in Anaconda, according to the Montana Department of Justice. A manhunt is intensifying for the gunman who allegedly killed a bartender and three patrons at a bar in southwestern Montana, authorities said.

Authorities are searching for 45-year-old military veteran Michael Paul Brown who killed four people at a Montana bar on Aug. 1.