A vigil has taken place in northern Serbia for those killed when the concrete roof above the entrance of a railway station collapsed as the death toll rises to 14. The general manager of the Novi Sad hospital said at least three people were in a critical condition, with two undergoing surgery for “life-threatening” injuries. Interior Minister Ivica Dačić said he feared the death toll would rise as rescue teams continue to clear away the rubble with heavy machinery. “This is one big, it’s one huge accident. Unfortunately, despite all of us being ready to react, police, firemen, rescuers, ambula…