Two people wereinjured in a boiler explosion at a chemical plant in Tongling city of east China's Anhui Province.
The two suffered minor cuts from glass fragments and were sent to hospital for treatment.
The accident occurred last night in a suburb area, Tongling's fire department, said.
The fire has been brought under control.
Video footage on microblog Sina Weibo showed huge fire and heavy smoke billowing into the sky.
Preliminary investigation showed that the explosion caused by fuel oil burning and no dangerous chemical products were involved, state run Xinhua news agency quoted Zou He, director of the public security bureau of Tongling as saying.
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