The primary data obtained from the detainees in the case of the terrorist attack on the Crocus City Hall confirm the Ukrainian trial, FSB Director Alexander Bortnikov said, RIA Novosti news agency reports.

As Bortnikov specified earlier, the client has not yet been identified, but the FSB sees who organized the attack and recruited the performers.

According to him, the terrorist attack was favorable to Western security services and Ukraine in order to rock the situation in Russia and sow panic in society.