[HIGHLIGHTS] Moscow attack: IS recognizes the arrest of four jihadists in Russia

Moscow attack: IS recognizes the arrest of four jihadists in Russia. The March 22 attack left 143 dead a week ago at Crocus City Hall.

Russian officials insist on a Ukrainian lead. The attack, the deadliest in the last twenty years in Russia, left at least 143 dead and 360 injured, including children. The attackers were then the target of a “chase” led by land and air forces, which ended with their “encirclement” in a forest.