Bretten (dpa / lsw) - A motorcyclist was critically injured in a fall from his machine in the Karlsruhe district on Saturday. According to the police, the 63-year-old man was on a federal road near Bretten. There he came off the road in a left turn, crashed into a delineator and rolled over several times. It was initially unclear whether he was going too fast or there was another reason for the fall.