ISIS claims responsibility for the Moscow attack amid international condemnation and Ukrainian denials of involvement. ISIS said in a statement posted on Telegram that its fighters “attacked a large gathering on the outskirts of the Russian capital, Moscow.” The number of victims of the attack rose to 62 dead and more than 105 wounded (French) Ukraine denies involvement Immediately after the attack was announced, doubts began to swirl about Ukraine's relationship with it.
Former Russian President Dmitry Medvedev said his country would "eliminate" Ukrainian leaders if they were found to be responsible for the bloody attack.