Conquering K2 in winter 'together'

A team of Nepalese climbers has become the first ever to summit the world’s second highest mountain, K2, in winter.

K2, along the Pakistan-China border, is notoriously challenging - with high winds and sub-zero temperatures.

One of the leading members of the team is a former Gurkha and British special forces soldier, Nirmal Purja. He spoke to BBC Pakistan correspondent Secunder Kermani.