Tens of thousands of people blockaded three bridges on the Danube River in Serbia's second city of Novi Sad on Saturday in the latest anti-government protest over a railway station disaster that killed 15 people in November.

Serbia’s students are leading mass protests and blockades of three bridges over the Danube river in the northern city of Novi Sad, drawing tens of thousands into the streets to express their anger with the country’s populist leadership and to call for change.