Seven people were killed and two others were injured on Friday after being exposed to poisonous waste at paper plant in central China's Hunan Province.
The accident occurred after a worker fell into a pool of poisonous waste paper pulp and his colleagues rushed to help him. Several died while trying to rescue the worker.
The accident occurred at around 11 a.m. in the city of Changde, the local government said. They vowed to punish those who should be held accountable.
An investigation team has been sent to find out the cause of the accident, the Changde government said.
