A British skier has been killed by an avalanche in the French Alps.The man, believed to be in his 50s, was found under 2.5 metres of snow after a 50-minute search, a statement from the La Plagne resort in south-eastern France said.He was skiing off-piste when the avalanche took place, the resort added.A team of more than 50 people, including medics, ski school instructors and dogs were involved in the rescue mission on Sunday afternoon.The man was skiing alongside a group when the incident occurred, but the resort said he was not equipped with an avalanche transceiver or accompanied by a professional instructor.La Plagne said its thoughts were with the man’s family.