TASS: an unknown person reported a threat of an explosion at Moscow's Sheremetyevo airport 
An unknown person, through the operator of the 112 service, reported a threat of an explosion at Moscow airport Sheremetyevo. This was reported by TASS with reference to a law enforcement source.
According to the agency, the airport building was not evacuated. At the moment, police officers and dog handlers with dogs are working on the spot.