Investigators obtained significant data while studying the contents of the mobile phones of those involved in the case of the terrorist attack at Crocus. Among other things, photographs of people in camouflage uniforms with the Ukrainian flag against the backdrop of destroyed houses were found on the phone of one of the terrorists.

One of the accomplices sent the curator photographs of the entrances to the concert hall on the anniversary of the start of the SVO. On Monday, April 1, a court in Moscow, at the request of the Investigative Committee, arrested the tenth person accused of the attack.