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.

Wrapped in blankets and huddled around fires at makeshift camps, Serbian students braved subzero temperatures in Novi Sad as they spent the night outside after a mass rally against corruption brought tens of thousands to the streets.