Giant wall of sand shrouds Chinese city

A giant wall of sand shrouded a city in northern China. The video, shot in Badan Jilin Town in Inner Mongolia on April 25, shows a 100-metre-high sand wall moving toward the buildings. The speed of the wind was 28.6 mph and the visibility was around 437 metres. A yellow warning signal (the lowest level) for the sandstorm has been issued. The video was provided by local media with permission.