Chemical plant explosion kills four in South Korea
A fire brigade official said that gas from the waste water, which had piled up inside the tank, caught fire from the welding torch.
At least four people have been killed in a blast at a chemical plant in South Korea. Owners of Ulsan's Hanwha Chemical Corp said that the explosion took place during welding work to expand a waste water disposal facility, reported the BBC.A fire brigade official said that gas from the waste water, which had piled up inside the tank, caught fire from the welding torch. Meanwhile, a probe to determine if the explosion was caused by negligence is under way.The plant manufactured polyvinyl chloride used in wide range of products, such as cling film.
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