Los Angeles - The death toll from the worst train crash in southern California history mounted Saturday with at least 17 people dead and 135 injured.
As hundreds of rescue workers continued to sift through the mangled wreckage, officials warned grimly that the casualty figures were expected to rise.
The horrific accident occurred at 4:23 pm (2323 GMT Friday) when a freight train slammed into a packed commuter train on a stretch of single track near Chatsworth, in the San Fernando Valley north of Los Angeles.