Angry protesters left red handprints at the entrances to government buildings in the Serbian capital on Sunday to demand the arrest of officials after a concrete canopy collapsed at a railway station in the north of the country, killing 14 people. and seriously injuring three others.

Police formed a cordon outside the Ministry of Construction and Infrastructure in central Belgrade as several thousand people called for senior government ministers, including Prime Minister Milos Vucevic, to resign immediately.

“Arrest, arrest!” chanted the crowd.

They shouted at police officers outside the building that they are “watching the murderers” and “your hands are bloody,” while holding signs that read “Corruption kills” and “We are all under the canopy!”

Opposition political activist Nikola Ristic urged: “Wherever you can, leave bloody hands so they know they have bloody hands. In all the cities of Serbia, everywhere you can.”

The concrete canopy running across the front of the train station in the northern city of Novi Sad suddenly collapsed on Friday, falling on people sitting on benches or passing by the building’s entrance.

Surveillance camera footage showed the canopy collapsed within seconds.

Among the dead was a six-year-old girl.

The three injured men, aged between 18 and 24, had to have their limbs amputated and were still in serious condition on Sunday, doctors said.

Funerals for the victims have been held in northern Serbia, attended by thousands of people.

The train station has been renovated twice in recent years and critics of Serbia’s populist government blamed the disaster on rampant corruption, a lack of transparency and sloppy renovations. The renovation was part of a broader deal with Chinese construction companies.

Liberal politician Biljana Stojkovic said: “Citizens no longer have anything to lose, they are increasingly aware of it. This is pain combined with anger, desperation that is turning into rage.”

Serbia’s populist government has promised a thorough investigation and prosecutors say they have already questioned more than two dozen people.

But critics believe justice is unlikely to be served with populists in firm control of the judicial system and the police.

Authorities have insisted that the canopy was part of the renovation work, suggesting this was the reason it collapsed, but have given no explanation as to why.

Novi Sad station was originally built in 1964, while the renovated station was opened by President Aleksandar Vucic and his populist ally, Hungarian Prime Minister Viktor Orbán, more than two years ago as a major stop for a planned fast rail line between Belgrade and Budapest.