Coal mine collapses in northern China, killing at least 21

Chinese state TV says 21 coal miners were killed when their mine collapsed

The disaster occurred Saturday in Shenmu in Shaanxi province in the heart of the country's coal-mining belt, according to state TV and the Xinhua News Agency.

Sixty-six other miners were rescued, the city government said in a statement.

The number of fatalities reported in cave-ins, explosions and other disasters in Chinese coal mines has fallen sharply over the past decade, but the industry still is the world's deadliest.