ISIS has claimed responsibility for an attack at a large concert hall in the Moscow area that left at least 40 people dead and more than 100 injured on Friday.
The attack happened as concertgoers were gathering to hear the Russian band Picnic.
Gunmen opened fire inside the building and dropped explosives that set it on fire, according to Russian media.
Russia’s Investigative Committee said it has opened a criminal probe into the attack but hasn’t said who might be behind it.
Russian Culture Ministry has canceled all mass and entertainment events in the coming days in the area.
The Associated Press contributed to this report.