YINCHUAN, April 2, 2016 (Xinhua) -- Pedestrians walk in snow in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2016. Snowfall hit the city on Saturday, causing inconvenience for local residents. (Xinhua/Wang Peng)

YINCHUAN, April 2, 2016 (Xinhua) -- Pedestrians walk in snow in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2016. Snowfall hit the city on Saturday, causing inconvenience for local residents. (Xinhua/Wang Peng)

YINCHUAN, April 2, 2016 (Xinhua) -- Pedestrians walk in snow in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2016. Snowfall hit the city on Saturday, causing inconvenience for local residents. (Xinhua/Wang Peng)

YINCHUAN, April 2, 2016 (Xinhua) -- A pedestrian walks in snow with an umbrella in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2016. Snowfall hit the city on Saturday, causing inconvenience for local residents. (Xinhua/Wang Peng)

YINCHUAN, April 2, 2016 (Xinhua) -- Vehicles travel in snow in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2016. Snowfall hit the city on Saturday, causing inconvenience for local residents. (Xinhua/Wang Peng)

YINCHUAN, April 2, 2016 (Xinhua) -- Pedestrians walk in snow in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2016. Snowfall hit the city on Saturday, causing inconvenience for local residents. (Xinhua/Wang Peng)

YINCHUAN, April 2, 2016 (Xinhua) -- A man walks in snow in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2016. Snowfall hit the city on Saturday, causing inconvenience for local residents. (Xinhua/Wang Peng)