Over 50,000 people were demonstrating around Greece on Wednesday, police said, in a mass outpouring of anger over last week’s rail disaster that claimed 57 lives.

The protests were held as train workers, civil servants, ferry crew members, doctors and teachers staged a 24-hour strike.

Thousands of workers have walked off the job to protest over the crumbling state of the Greek rail network, and striking workers say years of neglect, underinvestment and understaffing – a legacy of Greece’s decade-long debt crisis – are to blame.

Many of the about 350 people aboard an intercity passenger train that collided head-on with a freight train while travelling on the same track were university students heading to the northern city of Thessaloniki from Athens after a long public holiday weekend.

Platforms are empty at the main train station during a 24-hour nationwide strike in Athens, Greece, Wednesday, March 8, 2023. Photo: AAP via AP/Thanassis Stavrakis

The disaster has sparked protests across Greece, including more than 10,000 rallying in Athens on Sunday, releasing hundreds of black balloons into the sky.

Rail workers have staged rolling, 24-hour strikes since Thursday, bringing the network to a halt. They say their demands for improvement in safety protocols have gone unheard for years.

ADEDY, the umbrella union representing hundreds of thousands of public sector workers, has also called for a 24-hour walkout.

“We will impose safe railways so that no one will ever experience the tragic accident at Tempi ever again,” the main railway workers union said.

Other transport workers walked off the job in solidarity on Wednesday, disrupting metro, tram and bus services in the capital Athens.

Ships also remained docked at ports as seamen took part in the labour action.

Students and teacher groups have said they will take part in the rallies expected about midday in central Athens. They want authorities to thoroughly investigate the causes of the accident.

A protester, whose face is covered in blood, looks on after clashes between police and anti-government demonstrators, in central Athens, Greece, on Wednesday, March 8, 2023. The woman, who asked not to be named but agreed to be photographed, alleged she had been struck by riot police in an unprovoked incident. Photo: AAP/AP/Iason Raissis

“It’s not the time to fall silent, it’s time to speak up and fight,” a teachers’ union said.

Greece sold its state-owned railway operator, now called Hellenic Train, under its international bailout program in 2017 to Italy’s state-owned Ferrovie dello Stato Italiane.

The government, whose term expires this summer, has blamed human error for the crash. Prime Minister Kyriakos Mitsotakis apologised, acknowledging decades of neglect could have contributed to the disaster.

Hours after the crash, his transport minister resigned. Mitsotakis handed the portfolio to one of his closest aides, state minister George Gerapetritis.

On Wednesday, Gerapetritis was expected to meet transport experts from the European Commission, which has promised support, and speak to the media after a two-day inspection at the crash site.