Swiss trains collide, leaving 40 injured Two trains have collided head-on in Granges-pres-Marnand in western Switzerland. Geneva: Two trains have collided head-on in western Switzerland, injuring 40 passengers, at least five of them seriously, police say. The collision occurred in Granges-pres-Marnand around 1700 GMT on Monday (0400 AEDT Tuesday), police said. They said the fire department and ambulances were on the scene and that a helicopter was also despatched. The driver of one of the trains was still unaccounted for and thought to be inside the wreckage, at Granges-près-Marnand in the canton of Vaud, police spokesman Jean-Christophe Sauterel said. These are regional trains. The speeds are a little lower and even if one deeply regrets the likely loss of life of one person as well as five serious injuries, the situation could have been much more catastrophic," Sauterel said. He said it was too early to try to ascertain the cause of the crash. One of the injured was taken by helicopter to Lausanne. Others were treated on the spot by paramedics or taken to hospital by ambulance. One train was bound for Lausanne, some 38km to the south, while the other was travelling north from the same city. Traffic was interrupted on part of the line which links the cities of Palezieux and Payerne, the Swiss federal railway company said. Seventy-nine people were killed in a train crash in Spain last week, one of the worst in decades.