The government has declared Saturday a day of mourning for the victims A collapsing roof has claimed the lives of at least 14 people at a train station in the Serbian city of Novi Sad, the country’s President Aleksandar Vucic confirmed in his address to the nation on Friday. The cause of the collapse has not yet been established. The Serbian leader has stressed that all those responsible for the incident would be held to account. The roof plummeted at around 12:00 noon local time (11:00 GMT) on