The number of people killed when a passenger train and a freight train crashed head-on in fog-shrouded countryside in Italy rose to 16 on Saturday when three more bodies were found, officials said. More than 50 people were injured in Friday's crash, the country's worst rail accident in nearly 25 years. The body of a man was extracted from the wreckage early on Saturday afternoon, some 24 hours after the crash. Rescue workers had seen the body on Friday night but had to cut through the wreckage to reach it. Two other bodies, believed to be those of staff on the freight train, were found later on Saturday. The crash was believed to have been caused by a switching problem which sent the trains onto the same track. The impact derailed one of the engines, while one carriage was thrust into the air and crashed down onto the other train. The freight train was carrying heavy iron construction girders, and the impact of the crash hurled the metal bars like spears into one carriage of the inter-regional passenger train, which was carrying about 100 people.