Four killed at Tignes ski resort in France

At least four people have died in an avalanche at the ski resort of Tignes in south-eastern France.
Police says a group of nine was buried after the wall of snow swept through an off-piste area, other five people still missing.
The group was reportedly made up of eight skiers and a guide.
The 400-metre (1,300ft) wide avalanche occurred at an altitude of 2,100 metres, and struck at a particularly busy time during half-term holidays.
"Five people are still buried under a huge mass of snow," said a rescue official from nearby Albertville.
The resort is popular with British holidaymakers, but local police have said that the four dead skiers were all French nationals.