The search-and-rescue effort has entered its final stage after a 6.8-magnitude earthquake struck Dingri County in the Tibet Autonomous Region in western China on Tuesday, the regional government said.

The focus of work has shifted to the resettlement of quake-affected residents and post-disaster reconstruction, said Hong Li, head of the regional emergency management department at a press conference.

The government will spare no effort in searching for those who are still unaccounted for and treating the injured, Hong added.

More than 10,000 rescuers have been dispatched for the search-and-rescue work, and have found and rescued 407 people, said Wang Fanghong, mayor of Xigaze, which administers Dingri.

"We have always taken safeguarding people's lives as the top priority, and have organised disaster prevention works in a timely manner, properly relocating those affected while minimising casualties," Wang told reporters.

Hundreds of aftershocks have been reported after Tuesday's quake that killed at least 126 people and injured 188 others.

Inspecting the rescue efforts, Vice Premier Zhang Guoqing again called for all-out efforts to find survivors and treat the injured.

He also stressed the importance of ensuring those living in temporary shelters safe and warm. (Xinhua and agencies)