My thoughts and sympathies are with the family and friends of those who have sadly been killed in this tragic accident, as well as those who are still being cared for in hospital.
I'd also like to thank all those involved in the rescue effort and the medical staff who are treating the injured.
This is another stark and tragic reminder of the dangers on our mountains. They are one of the most beautiful places on Earth but they can also be inherently dangerous with treacherous and changeable conditions.
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Three others died on the day of a sightseeing helicopter accident at the Grand Canyon.