Munich, Rabi'II 30, 1437, Feb 9, 2016, SPA -- At least four people are dead and another 150 injured after two commuter trains collided head on near the southern German town of Bad Aibling on Tuesday, dpa cited police as saying. At least 150 people were injured - 10 of them seriously. One of the trains derailed, police in the southern state of Bavaria said. The reason for the head-on collision, which occurred at 0550 GMT and involved two trains operated remains unclear. --SPA 11:50 LOCAL TIME 08:50 GMT www.spa.gov.sa/w