The roof of a five story building collapsed after it was damaged in a gas leak explosion in Sesto San Giovanni on Sunday. The explosion occurred in the early hours on Sunday in the apartment of a 73-year-old man. Hours after the explosion, after workers had managed to remove most of the debris, the roof suddenly collapsed, pouring yet more debris onto the street. Though the building was... Еще severely damaged, inhabitants of the building reported only minor injuries. The exact cause of the gas leak is still under investigation.