Moscow. Seven Chinese tourists were killed when a tourist bus driving on the frozen surface of the famous Lake Baikal in Siberia, Russia, crashed. Local authorities confirmed that the tragic incident occurred on Friday when the bus fell into a large crack in the lake's ice and submerged.According to a statement issued by the regional branch of Russia's Ministry of Emergency Situations, the bus fell into an ice crack approximately three meters wide and sank directly into the water. Rescuers located the bus 18 meters below the surface using special underwater cameras, from where the bodies of all seven victims...