Nepal earthquake: Moment of Everest avalanche

Footage has emerged from climbers on Mount Everest, showing the moment an avalanche hurtled towards them when Saturday's earthquake struck in Nepal.

Repeated avalanches have swept away climbing ropes and ladders.

At least 18 people have been killed on the mountain and more than 60 have been reported injured.

The earthquake has killed more than 4,000 people across Nepal.

Caroline Hawley reports.

Footage courtesy Jost Kobusch