Emergency workers are searching through flattened, burned-out carriages for survivors and bodies after a passenger train and a freight train crashed head-on in central Greece. The collision just before midnight Tuesday killed at least 43 people and injured scores. It was the country's deadliest rail crash on record. Transport Minister Kostas Karamanlis resigned Wednesday, saying he felt it was his duty to step down. The cause of the crash near the Vale of Tempe was not immediately clear, but the stationmaster at the train's last stop was arrested. Survivors said the impact threw several passengers into the ceilings and through the windows of train cars.