Russia’s Federal Security Service (FSB) announced the arrest of four suspects on Sunday accused of providing arms and funding for the deadly shooting attack on a Moscow concert hall that left at least 140 people dead.
The detained men “were directly involved in the financing and supply of terrorist means to the perpetrators of the terrorist act carried out on 22 March in the Crocus City Hall in Moscow,” the FSB said.
The arrests coincide with a flurry of criticism against Russian authorities for failing to stop the massacre. Reports that emerged in the days after the shooting indicate that American and British authorities had warned Russia that “extremists” were plotting an “imminent” attack on large gatherings weeks before the shooting—warnings that Moscow brushed off.