Two trams have collided near a busy railroad station in The Hague, injuring 36 passengers. Carla Vermeulen, a spokeswoman for the HTM public transport network, said one tram slammed into the back of the other close to Holland Spoor station. Vermeulen says four of the injured were taken to hospital by ambulance. None of the injuries were believed to be serious. The cause of Tuesday's collision was being investigated, according to a report of the Associated Press.