Toxic spill in second China river

A toxic spill in southern China is threatening water supplies to millions of people, state media have said.
It was caused by excessive discharge of cadmium from a state-owned smelter in the city of Shaoguan into the Bei River in Guangdong province, they said.

In the city of 500,000 people, water was shut off for most of Tuesday, residents said. Downstream, people were warned not to drink tap water.