US diverting attention from Moscow attack with focus on Daesh: Kremlin

Speaking in an interview, Peskov said it looks strange that Washington takes the liberty to speak about the only version of what happened.

"This, of course, shows that they want to shift attention from something else," he emphasised.

He urged everyone to have patience and wait for the official results of the investigation, noting that so far, no one has presented official versions.

"The special services are working to back up the existing versions," he said.

At least 140 people were killed and more than 360 injured on March 22 when gunmen opened fire at Crocus City Hall in Krasnogorsk, Moscow Oblast.

The Investigative Committee said it detained 11 people, including four perpetrators, in the border region of Bryansk, who were on their way to Ukraine.

Moscow's Basmanny District Court late Sunday charged the four perpetrators with terrorism and approved their pre-trial detentions until May 22.