Thousands of protesters gathered in Montenegro on Sunday, January 5, in anger over a mass shooting in which 12 people were killed on New Year’s Day.Vijesti newspaper said demonstrators were demanding the resignations of Deputy Prime Minister Aleksa Becic and Interior Minister Danilo Saranovic.

Officials say a gunman opened fire at multiple locations in Montenegro, killing a dozen people before turning the gun on himself.

A top-level meeting in Montenegro on Friday looked for ways to curb illegal weapons after a gunman fatally shot 12 people in a second such tragedy in less than three years in the small Balkan country.

A man shot dead 12 people in a rampage in a small town in Montenegro before turning his gun on himself early on Thursday, authorities said, in one of the Balkan nation's worst mass killings.

The 45-year-old gunman had been drinking all day when he got into a fight at a restaurant, which led to the rampage, authorities said.

Montenegro on Thursday began three days of national mourning, a day after a gunman killed 12 people including two children in a shooting rampage that started in a restaurant.

Montenegro is sixth in the world when it comes to the number of illegal weapons per capita, according to reports.

Residents of the Montenegrin town of Cetinje woke up on Friday to see a number of obituaries posted across street walls and posts for those killed in a New Year's day shooting.