BAD AIBLING, Germany — Two commuter trains crashed head-on Tuesday morning in a remote area in southern Germany, killing at least nine people and injuring some 150, some of whom had to be cut out of the wreckage and transported across a river for medical care, police said.

All trains in the crash region have been stopped until further notice.

The two regional trains crashed before 7 a.m. on the single line that runs near Bad Aibling, in Bavaria, and that several wagons overturned, police spokesman Stefan Sonntag told The Associated Press. Fifty of those hurt have serious injuries, he added.

The rail line is commonly used by commuters heading to work in Munich, and would normally also carry children travelling to school, but they are currently on holiday, the dpa news agency reported.

It was not clear how fast the trains were travelling at the time of the crash but German rail operator Deutsche Bahn told dpa they were permitted to travel of speeds up to 120 kilometres per hour (80 mph) on that stretch of track.

The trains crashed in a remote area about 60 kilometres (40 miles) southeast of Munich in an area with a forest on one side and a river on the other. Rescue crews using helicopters and small boats shuttled injured passengers to the other side of the Mangfall river to waiting ambulances. Authorities said they were being taken to hospitals across southern Bavaria.