Xinyu, a city in Jiangxi Province, was cloaked in a "white fog" on Saturday morning as dense white dust floated in the air, reports Xinhua.

Many citizens deemed it a mysterious meteorologic phenomenon, possibly the result of a particularly dry and hot autumn.

But meteorologists said it might have been caused by environmental pollution in neighbouring areas.

They believed the wind carried the dust to Xinyu, which sits at a lower elevation.

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