At least four people are killed and more than 150 others injured after two trains collide in southern Germany, police say.

Police said rescuers have found four dead and about 150 injured, including 10 in very serious condition, at the crash site in Bavaria. 

A police spokesman said two trains crashed head on at 6.48 a.m. local time (0548 GMT) Tuesday near Bad Aibling in the southeastern corner of Germany.