Summary:
Black clouds of smog lingered for miles away after a huge fire at a rubber factory in China.

Full article:
Terrified locals in China were forced to flee today when the blue sky overhead disappeared and it looked like a giant tornado was descending on their city. But the black storm clouds were in fact smoke from a massive chemical blaze at a rubber factory in Jinzhou, Hubei . province. The massive blaze was so large it could be seen miles away by stunned residents. Horror: Terrified locals in China were forced to flee today when the blue sky overhead disappeared and it looked like a giant tornado was descending on their city . Intimidating sight: But the black storm clouds were in fact smoke from a massive chemical blaze at a rubber factory in Jinzhou, Hubei province . 'It was so huge it . blotted out the sun and we thought we were going to be swallowed up by . it,' said one local after fire-fighters fought for hours to bring the . blaze under control. Fire investigators later said that the blaze . started when stores of a compound called naphthalene - used in rubber . and plastic production - caught fire. Even after the fire was under control black clouds of smog continued to float in the air and lingered for miles away. Battle: 'It was so huge it blotted out the sun and we thought we were going to be swallowed up by it' said one local after fire-fighters fought for hours to bring the blaze under control . Uncontrollable: The huge chemical blaze caused a black mushroom of smoke to envelope the scene .