This footage illustrates a large crowd of students with flags and banners chanting during protest against government policies, corruption and negligence, which they blame for the incident at Novi Sad railway station,

BELGRADE (Reuters) - Tens of thousands of anti-government protesters in Belgrade on Sunday switched on the lights on their mobile phones and stood in silence for 15 minutes to commemorate victims of a railway station roof collapse for which they blame authorities.

The student-led protests forced businesses throughout Serbia to shut their doors, including many schools as teachers' unions backed the call to strike. As well as Belgrade and Novi Sad, protest marches also took place in the southern city of Nis and smaller cities,