Rescue efforts in remote high-altitude terrain underway in below-freezing conditions after tremors that were also felt in neighbouring Nepal and India

• Full report: dozens dead as 6.8-magnitude quake strikes holy city of Shigatse

Chinese President Xi Jinping has ordered “all-out” rescue efforts to save lives and minimise casualties, the state-run news agency Xinhua reported.

The president had also “urged efforts to prevent secondary disasters, properly resettle affected residents, and handle the aftermath work effectively”, it reported.