WASHINGTON, March 23. /TASS/. In March, the United States shared information with Russian authorities about a terrorist attack being planned in Moscow, spokesperson for the White House National Security Council Adrienne Watson told Reuters.

"Earlier this month, the US government had information about a planned terrorist attack in Moscow - potentially targeting large gatherings, to include concerts - which prompted the State Department to issue a public advisory to Americans in Russia. The US government also shared this information with Russian authorities in accordance with its longstanding ‘duty to warn’ policy," Watson said.

A terrorist attack was carried out at the Crocus City Hall music venue in the city of Krasnogorsk near Moscow on Friday evening. Unidentified gunmen armed with assault rifles went on a shooting spree. An explosion rocked the building, starting a fire. The special services are conducting a search operation. Moscow Mayor Sergey Sobyanin canceled all mass events in the capital in the next two days, and a number of other Russian regions followed suit.