Melting at one of the largest ice caps on Earth has produced a big jump in its flow speed, satellite imagery suggests.

Austfonna on Norway's Svalbard archipelago covers just over 8,000 sq km and had been relatively stable for many years.

But the latest space data reveals a marked acceleration of the ice in its main outlet glacier to the Barents Sea.

The research was presented in Brussels on Thursday to mark the launch of the EU's new Sentinel-1A radar spacecraft.

Read more in the BBC News article