21.   A portion of the tunnel leading to the shaft had collapsed, trapping the miners and preventing rescue workers from reaching them.

22.   The miners were trapped when a hailstorm and rising waters submerged a coal mine in Zhaosu, in the northwestern province of Xinjiang.

23.   The miners were trapped after mud from an adjacent open cast diamond excavation rushed into the shaft through a crack in the wall, according to trade union officials.

24.   The miners were trapped when a shaft collapsed Monday in the Nowy Wirek coal mine at Ruda Slaska, in the coal-rich Silesia region.

25.   The miners were trapped in the northwestern Xinjiang province when a hailstorm and rising waters submerged a coalmine in Zhaosu, the agency reported.