They walked for two days and spent a night out in the open. But protesting Belgrade university students in Serbia got a taxi ride home — free of charge.

One of Belgrade's key traffic arteries turned into a campsite on January 27. Thousands of students and citizens gathered for an all-day road blockade, demanding political and criminal accountability for the deaths of 15 people at Novi Sad's railway station on November 1.

The growing movement began following the collapse of a concrete canopy at the central train station in Novi Sad, killing 15 people.