19-year-old found dead on the roof of an S-Bahn train in Berlin-Zehlendorf. Police believe he had been hit by obstacles at head height while driving.

Federal Police urgently warned against holding onto, between or on trains and riding along in this way. The train traffic of the S1 was interrupted for the duration of the investigation, but since the morning, the trains have been running again on schedule, it said. The first clues from witnesses to the dead young man were received by the police early Sunday morning.