"During a firearms training session with individuals who voluntarily expressed a desire to participate in the special military operation (against Ukraine), the terrorists opened fire with small arms on the personnel of the unit," the Defense Ministry said. 

Russia said Saturday's two assailants were from an unspecified former Soviet republic, and died in an attack on recruits assembled for marksmanship training. The type of weapon training wasn't indicated. 

According to Russia's Sota Vision, the incident took place in the town of Soloti, in Russia's Belgorod Oblast (province), which borders Ukraine. "A terrible event happened on our territory, on the territory of one of the military units," said Belgorod governor Vyacheslav Gladkov early Sunday.