At least eleven people were killed and around 150 injured in a head-on crash between two passenger trains in southern Germany on Tuesday, local media reported.

The crash near Bad Aibling, 60 kilometers (37 miles) southeast of Munich, left 50 people seriously injured.

Bavarian Interior Minister Joachim Herrmann described the accident near the Austrian border as “one of the biggest train accidents in recent German history,” according to broadcaster Deutsche Welle.

It was not immediately clear what caused the crash, which reportedly happened at low speed.

Several passengers were airlifted to hospital while others were taken by boat across the River Mangfall to waiting ambulances.

The DPA news agency reported that more people would have been on the train but schoolchildren are currently on holiday and many people are off work due to a local festival.

Anadolu Agency