Italian train derails in Switzerland; injuries unknown

Swiss police say they are trying to reach people trapped inside a train that derailed in the central city of Lucerne, with details of any injuries still unclear.
Rail company SBB says the Milan to Basel train derailed shortly before 2 PM today as it was pulling out of Lucerne's main train station.
It says the Trenitalia train's fourth carriage toppled over and a power line has been interrupted.
Urs Wigger, a spokesman for Lucerne police, said that rescuers can't enter the train to determine whether anyone has been injured until they're sure the severed power line is switched off.