Rescuers continue to work at the scene of a train crash in Greece. A passenger and a freight train collided not far from the Greek city of Larissa, Reuters reported.

As a result, at least 57 people were killed and dozens of people were injured.

The disaster caused a wave of anger and protest throughout the country, and attention to the safety standards of the railway system also increased.

The head of the Larissa railway station was arrested in connection with the disaster. The Greek government has linked the accident to the human factor, but the railway unions assure that it was unavoidable due to the imperfection of the safety systems and insufficient staff.

On Saturday, the head of the station will respond to the accusations of the prosecutor regarding disruption of transport work and posing a risk to people's lives.

A passenger train traveling from Athens to the northern city of Thessaloniki was full of students returning after long holidays.

The police informed that the bodies of 54 of the 56 casualties whose relatives had declared them missing have been identified so far. Almost all of them were identified by DNA tests. The 57th body  c could not be identified because no one took the respective DNA test.

The families of the dead promised to get justice.

The railway union has been on a round-the-clock strike since Wednesday. On Friday, the operation was extended by 48 hours, demanding a clear timetable for the implementation of security measures from the government.

Clashes broke out between police and protesters on Friday after 2,000 students marched through Athens, blocking the road to parliament with a minute's silence. The students also held demonstrations in Larissa and Thessaloniki.

On Wednesday morning, a freight and a passenger train collided in the town of Tempi, not far from the city of Larissa. As a result, a fire broke out, three train cars derailed.