DAP's Sibu MP Oscar Ling is calling on the Sarawak state government to investigate the logjam that is currently clogging up the state's Rajang River.

He said in a statement today that the logjam has caused water treatment plants along affected areas to be unable to operate as normal due to high pollutants in the water.

"The Sibu water board has announced that all the water treatment plants in Sibu have ceased to operate at the moment, and the clean water supply...