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

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

Armen Sarkisyan, the Moscow-backed collaborator from Ukraine's Donetsk region, died in the hospital after being injured in an explosion in an elite residential complex in Moscow on Monday, according to Russian state-run outlets.

In Moscow, a mysterious explosion occurred in a residential building, resulting in one death and four injuries. Investigators are examining the circumstances of the incident. In the north-western part of Moscow,