Avalanche kills four

Bulldozers clean the snow on the way to a mountainous tunnel construction site where 12 workers were buried in an avalanche, March 13, 2008. [Xinhua]

Rescuers are on the way to a mountainous tunnel construction site where 12 workers were buried in an avalanche, March 13, 2008. [Xinhua]

Rescue vehicles have to wait on the 312 National Road since the way linking the construction site is blocked by snow. [Xinhua]