‘Basically a whole shelf of a mountain came loose’ said one person who fled the scene in Banff National Park

Two people have been killed and another three injured when a major rockfall crashed onto a group of hikers on a popular Rocky Mountain trail in western Canada.

The accident happened on Thursday near the Bow Glacier Falls in Banff National Park, about 225km (140 miles) north-west of Calgary, Alberta. The area is known for its natural beauty and is particularly busy in summer.