CONA, April 16, 2016 (Xinhua) -- A vehicle runs on snow-covered mountain road in Cona County of Shannan Prefecture in southwest China's Tibet Autonomous Region, April 15, 2016. A heavy snowfall hit the area since April 14, causing inconvenience to people's life and travel. (Xinhua/Liu Dongjun) 

CONA, April 16, 2016 (Xinhua) -- A vehicle runs on snow-covered mountain road in Cona County of Shannan Prefecture in southwest China's Tibet Autonomous Region, April 15, 2016. A heavy snowfall hit the area since April 14, causing inconvenience to people's life and travel. (Xinhua/Liu Dongjun) 

CONA, April 16, 2016 (Xinhua) -- A vehicle runs on snow-covered mountain road in Cona County of Shannan Prefecture in southwest China's Tibet Autonomous Region, April 14, 2016. A heavy snowfall hit the area since April 14, causing inconvenience to people's life and travel. (Xinhua/Liu Dongjun)

CONA, April 16, 2016 (Xinhua) -- Photo taken on April 14, 2016 shows a house in sleet in Cona County of southwest China's Tibet Autonomous Region. A heavy snowfall hit the area since April 14, causing inconvenience to people's life and travel. (Xinhua/Liu Dongjun)

CONA, April 16, 2016 (Xinhua) -- Photo taken on April 15, 2016 shows the snow-covered mountain road in Cona County of southwest China's Tibet Autonomous Region. A heavy snowfall hit the area since April 14, causing inconvenience to people's life and travel. (Xinhua/Liu Dongjun)