Serbia's students led a mass protest and blocked bridges over the River Danube in the northern city of Novi Sad on Saturday, drawing tens of thousands into the streets to express their anger with the country's populist leadership and to call for change.

Many in Serbia believe that the collapse was essentially caused by government corruption in a large infrastructure project with Chinese state companies. Critics believe graft led to a sloppy job during the reconstruction of the Novi Sad train station,