Thousands of passengers were evacuated, and dozens needed medical help after a fire broke out on the subway in downtown Moscow during morning rush hour, throwing the system into chaos, transport officials said. According to the Moscow emergencies service, the fire broke out in a tunnel between Biblioteka Imeni Lenina and Okhotny Ryad, two stations on the Moscow Metro’s oldest Sokolnicheskaya line, which runs through the city center close to the Kremlin. A total of six stations on the line have been closed. Thousands of people were evacuated from the stations because of dense smoke from the fire, which started in electrical cables. Some 47 people sought medical assistance. At least seven were hospitalized, according to the Emergency Situations Ministry.