NANJING - Four people were killed and four others injured following a blast at a company in the city of Taizhou, East China's Jiangsu province, on Tuesday, according to local authorities.

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The incident took place at 3:30 pm at the Jiangsu Huili biotechnology company in the city's Gaogang district. The company specializes in biological fermentation and related fields.

An investigation into the cause of the blast is currently underway.