THOUSANDS of people in Serbia marked the six months today since a train station tragedy in the country’s north killed 16 people and triggered a wave of anti-corruption protests that have shaken populist President Aleksandar Vucic’s tight grip on power.

Workers’ unions joined university students in Belgrade, Serbia’s capital, to demand changes in labour and strike laws as part of May Day protests.

In the northern city of Novi Sad, residents left flowers and lit candles outside the central station, where tons of concrete crashed on the people standing or sitting underneath on November 1.