The founder of a pro-Russian militia group in eastern Ukraine, described by authorities in Kyiv as a “criminal mastermind”, has died following a bombing in central Moscow, according to Russian state media.

Armen Sargsyan, the leader of a paramilitary unit wanted by Ukraine, died from his injuries following an explosion on Monday morning.

An explosion rocked an upscale residential block in Moscow early Monday, killing two people -- including the founder of a battalion that battled Kyiv's forces in eastern Ukraine -- and injuring three others,

A pro-Russian paramilitary leader from eastern Ukraine, Armen Sarkisyan, was killed when a bomb tore through parts of a luxury apartment block in Moscow, state news agency TASS and other Russian media reported.

Armen Sargsyan, the leader of a pro-Russian paramilitary group in eastern Ukraine, died in a hospital after he was injured in an explosion in Moscow on Monday, Russian officials said.

A bomb tore through the lobby of a luxury apartment block in Moscow on Monday, killing at least one person and injuring four others in an attack targeting a pro-Russian paramilitary leader from eastern Ukraine,

An explosion rocked an upscale residential block in Moscow early Monday, killing two people – including the founder of a battalion that battled Kyiv’s forces in eastern Ukraine -- and injuring three others,

A mysterious explosion occurred in a residential building in Moscow, resulting in one death and four injuries. Investigators are examining the circumstances surrounding the incident. An explosion took place in a residential building in the northwestern part of Moscow,