A military helicopter carrying injured people from China's devastating earthquake crashed in fog and turbulence, sparking a search for any survivors, state media reported Sunday. The Russian-designed Mi-171 transport helicopter was carrying 10 passengers and four crew when it crashed Saturday afternoon in Wenchuan county in China's quake-hit southwest, the official Xinhua News Agency reported. There was no immediate word on any survivors or casualties. Xinhua said a search and rescue operation was under way.