Karen Drambyan, who opened fire in the Estonian Defense Ministry acted alone and did not have any accomplice. The reasons for shooting are not yet known, Itar-Tass reported citing a source in Estonian law enforcement.

Drambyan penetrated into the ministry building at about 3 pm local time with two pistols and handmade explosive assemblies. He produced no demands and did not negotiate with the police. At about 5.25 he was shot dead by police officers, after wounding one of them.

According to Estonian media reports, Karen Drambyan, who was born in Armenia in 1954, had financial problems and lost his apartment because of debts.