Tens of thousands of people in Serbia have been marching in the streets to protest alleged Serbian government corruption after an accident that killed 15 people.

If Serbian President Aleksander Vucic hoped the resignation of his hand-picked prime minister would get students to end nearly three months of anti-corruption protests, he didn’t have to wait long for an answer.

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.

Serbia’s populist Prime Minister Milos Vucevic has resigned following weeks of massive anti-corruption protests over the deadly collapse of a concrete canopy in November