(Express) – Bejing has been rocked by the worst sandstorm seen in a decade that has left 6 dead and over 340 people missing in neighboring Inner Mongolia. The sandstorm covered the Chinese city and grounded more than 400 flights.

The thick blanket of brown dust from the Gobi Desert was pushed into Beijing by heavy winds. The China Meteorological Administration announced a yellow alert due to the sandstorm on Monday morning.

The sand spread from Inner Mongolia into the provinces of Gansu, Shanxi, and Hebei, which surround Beijing. Mongolia was the worst affected region and currently has more than 340 people considered missing as a result of the sandstorm as well as 6 people dead.

State news agency Xinhua stated: “Starting from Monday to 8 am Tuesday, affected by cold fronts and heavy winds, floating sand and dust are expected to sweep parts of Xinjiang, Inner Mongolia, Heilongjiang, Jilin, Liaoning, Gansu, Ningxia, Shaanxi, Shanxi, Hebei, Beijing and Tianjin,” Beijing resident Flora Zou told Reuters: “It looks like the end of the world,”

She added: “In this kind of weather I really, really don’t want to be outside,” Viewers of the sandstorm footage took to social media to share their thoughts. Greenpeace East Asia’s Li Shuo tweeted: “Beijing is what an ecological crisis looks like. “After two weeks of smog and static air, strong wind carries a sand storm in,” READ MORE