Liebenau (dpa/lhe) - After a collision with a car, a runaway horse was put to sleep in Liebenau in the Kassel district. The collision occurred on Wednesday evening, the police said on Thursday. For reasons that are not yet known, the animal escaped from its shyness and crossed the street. A 21-year-old driver was unable to prevent the collision. Because the horse was so badly injured, a vet euthanized it a short time later. The driver was not injured.