Nine killed after waste water tank explodes at Chinese dye factory
- Senior managers detained as authorities investigate cause of blast that also left a dozen workers injured at plant in eastern province of Zhejiang
- Factory owners have previously been punished for breaching environmental regulations and failing to properly account for explosives and chemicals

Nine people were killed and a dozen more were injured after a waste water tank exploded at a factory in eastern China on Tuesday evening.
Four of the injured were in critical condition after shock waves caused by the blast damaged the plant and an adjacent one in an industrial park in Haining, a city in Zhejiang province, according to the local authorities.
Senior managers of the company, Longzhou Printing and Dyeing, have been detained by the police while an investigation into the cause of the accident is held.
The tank, about 3 metres wide and 15 metres tall (5ft by 50ft) and filled with waste water from dyeing, exploded soon after 5pm before collapsing, Zhejiang Television reported, quoting the city’s firefighting department.

The broadcaster reported that waste water had flooded the area and contaminated a nearby river.