Deputies spent Saturday traversing a rugged mountainous area of Montana with helicopters overhead as a manhunt for a military veteran suspected of fatally shooting four people at a bar stretched into a second day with no capture.

Authorities were scouring a mountainous area of western Montana on Saturday for a military veteran who they say opened fire at a bar, killing four people.

The suspect behind Montana bar shooting, identified as 45-year-old Michael Paul Brown, is still at large. Authorities have asked Anaconda residents to ‘stay inside and lock doors’