At least 36 people have been killed and more than 80 injured after a night time head-on collision between a passenger train and a freight train near Tempe in northern Greece. Rescue crews spent hours combing through the wreckage after multiple cars derailed and burst into flames. A stationmaster in the city of Larissa has been arrested, with two other people detained for questioning, police said.

The passenger train was carrying more than 300 people, including many university students returning home from Carnival. Witnesses described confusion and fear among passengers as multiple pieces of steel and wrecked cars littered the scene. Prime Minister Kyriakos Mitsotakis described the crash as "an unspeakable tragedy," and vowed to determine the cause and do everything in his power to make sure it never happens again.

The tragedy is a reminder of how deadly train crashes can be, despite Europe’s good overall safety record in rail travel