China Earthquake: Rescue operation under way

A major rescue and relief operation is under way after a magnitude 6.1 earthquake struck in south-west China.

At least 175 people were killed and scores more injured, state media say.

The US Geological Survey said the quake struck about 11km (7 miles) north-west of Wenping in Yunnan province.

Howard Zhang from the BBC Chinese Service said rescue teams were working in difficult terrain to help people trapped under rubble.