"Currently, at 12:00 p.m. [4:00 GMT] on Sunday, a total of 604 people who sustained injuries in the attack have received medical attention. Out of those, 19 remain in critical condition, 98 in serious condition, 59 have been discharged and 142 remain in the hospitals," Shaodun said.
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The explosion occurred on Thursday at the Tianjiayi chemical plant in the Jiangsu province. The cause of the explosion has not yet been identified and experts are working at the scene to determine if there has been any environmental contamination due to the blast.
So far, authorities said that the drinking water in the area has not been affected.