According to official reports, there were no threats to passenger safety MOSCOW, April 21. /TASS/. A technical malfunction disrupted train traffic on the Sokolnicheskaya Line of the Moscow Metro on Tuesday, the city’s Transport Department reported. Train traffic was restored later in the day. TASS has gathered the key information about the incident. Traffic disruption - Train intervals were increased in the central part of the Sokolnicheskaya Line of the Moscow Metro so that the affected train