An armed man opened fire in a bar in Cetinje, Montenegro, killing at least four people and wounding four others on Wednesday.

Identified by local media as Aco Martinovic, a 45-year-old known for erratic behavior, the suspect fled the scene armed.

Reports suggest the shooting followed a bar brawl, with victims including the bar owner’s children and a woman.

Special police forces were deployed, and Montenegro’s Prime Minister Milojko Spajić declared three days of mourning, calling the tragedy devastating, The Guardian has reported.

Authorities urged residents to stay indoors, ruling out gang-related violence.

Written by B.C. Begley