People walk in snow in Altay City, northwest China's Xinjiang Uygur Autonomous Region, Feb. 9, 2016. A cold front brought heavy snowfall to the city on Tuesday. (Xinhua/Tang Xiaobo)

Vehicles clean the snow on road in Altay City, northwest China's Xinjiang Uygur Autonomous Region, Feb. 9, 2016. A cold front brought heavy snowfall to the city on Tuesday. (Xinhua/Tang Xiaobo)

A seller stands in snow in Altay City, northwest China's Xinjiang Uygur Autonomous Region, Feb. 9, 2016. A cold front brought heavy snowfall to the city on Tuesday. (Xinhua/Tang Xiaobo)

A woman poses for photos in snow in Altay City, northwest China's Xinjiang Uygur Autonomous Region, Feb. 9, 2016. A cold front brought heavy snowfall to the city on Tuesday. (Xinhua/Tang Xiaobo)

People walk in snow in Altay City, northwest China's Xinjiang Uygur Autonomous Region, Feb. 9, 2016. A cold front brought heavy snowfall to the city on Tuesday. (Xinhua/Tang Xiaobo)