From St. Petersburg with a knife has blocked people in the train station

a Resident of St. Petersburg was threatened with a knife by subway passengers, forcing the driver had to block the people in the train cars. Video from the scene published in the group “accident and emergency | Saint Petersburg | Piter | SPb” in “Vkontakte”. The footage shows a man running along the platform, waving a knife in the side of a train coming, heard the screams of frightened passengers. A couple of minutes the brawler detained by the police.