Authorities were focusing on brushy terrain near the town of Anaconda, where they said the suspect killed four people.

Authorities were scouring a mountainous area of western Montana for a military veteran who they say opened fire at a bar in the small town of Anaconda, killing four people.

Authorities are searching for Michael Paul Brown, 45, in Anaconda, Montana, and the city is on lockdown, according to the Granite County Sheriff's Office