Russia's Federal Security Service is acting on a US warning about preparations for a terrorist attack in Moscow, the agency told TASS. "We received information from the US through established cooperation channels about the preparations for a terrorist attack in Moscow. Appropriate action is being taken," the FSB said.

Russia's Federal Security Service is acting on a US warning about preparations for a terrorist attack in Moscow, the agency told TASS. "We received information from the US through established cooperation channels about the preparations for a terrorist attack in Moscow. Appropriate action is being taken," the FSB said.