Rescuers and forensic experts searched through the twisted, smoking wreckage Wednesday of a head-on train collision in central Spain that left at least 11 people dead and another 16 missing. Authorities said 38 people were injured in the crash Tuesday evening, when a passenger train carrying about 90 people and an empty freight train collided near Chinchilla in Albacete province, 155 miles southeast of Madrid. Development Minister Francisco Alvarez Cascos said the cause of the crash may have been a railway worker who gave a wrong signal. Normally, one of the trains would have been diverted onto a side track while the other continued on the line. The locomotive and first few cars of the Talgo passenger train caught fire after the crash and TV footage showed flaming cars piled on the tracks. Six charred bodies were recovered from the train's bar-restaurant Wednesday morning, raising the death toll to 11, said Antonio Peinado, head of Albacete's fire service. "I saved myself because I was in the toilet at the moment of the collision," passenger Nieto Pinto said on National Radio. "I reeled from side to side. When I tried to get out to find my husband there was a tremendous fire, everybody was screaming." The Castilla-La Mancha regional emergency rescue service renewed the search for the missing after dawn Wednesday. Three large cranes were on either side of the railway line where smoke was still rising from the charred cars. TV footage showed rescue workers and forensic investigators searching amid the blackened wreckage. Prime Minister Jose Maria Aznar was to travel to Albacete later Wednesday, his office said. Both locomotive crews died when the trains collided three miles from Chinchilla and nine miles from Albacete underneath high tension wires that fell on the wreck and caused a fierce blaze. Other victims included a mechanic, said a spokesman of Spain's state rail way company Renfe. After the accident, police warned people in Chinchilla to stay indoors and close their windows, believing the freight train was carrying sulphuric acid. But hours later Renfe confirmed the tanker cars were empty at the time of the crash. In January an intercity train derailed on the same line from Madrid to Cartagena, also near Albacete, killing two people. **PHOTO CAPTION*** Firemen stand next to the wreckage of a passenger train and a freight train Wednesday June 4, 2003, after they collided head-on near Chinchilla, central Spain. (AP Photo/Ramon Espinosa)