Dozens dead in Chinese earthquake

A strong earthquake that hit a hilly farming area in north-west China has killed at least 75 people and injured more than 400.
The quake near the city of Dingxi in Gansu province toppled brick walls and telephone lines, shattered mud-and-tile-roofed houses and sent cascades of dirt and rock down hillsides that blocked roads and slowed rescue efforts by crews trying to reach remote areas.