Rescue workers scoured piles of concrete and twisted metal for survivors on Friday (November 1) after a roof collapsed at the entrance of a railway station in the Serbian city of Novi Sad killing at least 13 people.

Cranes and bulldozers helped sift through the wreckage alongside dozens of rescuers and construction workers, while medical staff and ambulances waited nearby.

The collapse of a 35-meter (115 ft) length of roofing occurred at noon (1100 GMT) on a sunny day in the city about 70 km (40 miles) northwest of the capital, Belgrade. The dead were pulled from the rubble throughout the afternoon and into the evening.

Luka Causic, who heads the Interior Ministry's Centre for Emergency Management, said the rescue operation was complicated by the sheer weight of the concrete and that the operation will continue through the night.

N1 news channel said the building's reconstruction had been completed this summer, but that the part of the roof which collapsed had not been part of the reconstruction. - report from Reuters