The spill of 60 tons of coal tar into the Dasha river in north China's Shanxi province was the latest in a series of mishaps fouling the country's already polluted waterways. Officials said there have been at least 76 water pollution accidents in the last six months.

A villager who lives along the river described seeing dozens of dead fish floating in the water.

In a separate incident Thursday, a series of explosions rocked the Longxin Chemical Plant in the city of Longquan, Zhejiang province, destroying two factories and threatening to contaminate the Oujiang river, which empties into the East China Sea, the official Xinhua News Agency reported.