Images being widely shared on social media appear to show the train that has derailed in a mountainous area of Switzerland.
At least two carriages appear to have left the tracks and are hanging over a ravine.
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TV favourite Cilla Black, who has died aged 72, gave viewers a "lorra, lorra laughs" during her long career.
Some rain in the north. Very warm sunshine in the south
Blind Date and Surprise Surprise star Cilla Black,72, has died, according to reports.