Formed by the active collision of the Indo-Australian and Eurasian tectonic plates, Broad Peak consists of plutonic granite blocks and metamorphic rock layers.

Around 10 climbers, including expert mountaineer Nirmal Purja, are feared missing after an avalanche hit Broad Peak in northern Pakistan - this is a breaking news story

World-renowned climber Nirmal Purja is feared missing following an avalanche on Broad Peak in Pakistan, the Alpine Club of Pakistan said in a statement.