China mine disaster: Dozens trapped by 'rock burst'
Dozens of miners have been trapped in a coal mine in China after a "rock burst", officials say.
Four miners were killed and 50 more are missing after the accident, which happened late on Thursday in the city of Sanmenxia in Henan province.
State media reported that the rock burst - an explosion caused by the sudden release of built-up pressure - happened shortly after an earthquake.
The BBC's Michael Bristow reports.
04 Nov 2011
- From the section China