MOSCOW, March 22. /TASS/. Passenger control has been stepped in the Moscow Metro after the terrorist attack in the Crocus City Hall concert hall in the Moscow Region, the Transport Department wrote on its Telegram channel.

"Our priority is the safety of passengers, staff and infrastructure. Security issues in the Moscow subway are always the top priority, enhanced passenger screening is in place," it said.

Subway security services have been beefed up at the Myakinino metro station. The station is operating routinely.