At least 367 people have been killed and some 1,300 injured after a magnitude 6.1 earthquake struck in south-west China, state media say.

The US Geological Survey said the quake struck about 11km (7 miles) north-west of Wenping in Yunnan province at 16:30 local time (08:30 GMT).

A major rescue and relief operation is under way to help people trapped under rubble.

John Sudworth reports.