CHARLESTON, W.Va. -- A list of West Virginia customers being asked to avoid using water is growing because of a chemical spill into the Elk River in Charleston.

West Virginia American Water expanded its advisory from five to nine counties Thursday night.

Gov. Earl Ray Tomblin has declared a state of emergency, telling the company's customers in those areas not to drink, bathe, cook or wash clothes in the water and to only use it for flushing.

NBC affiliate WSAZ in Charleston is reporting the state of emergency includes West Virginia American Water customers in Kanawha, Boone, Putnam, Lincoln, Logan, Clay, Roane and Jackson counties. Culloden in Cabell County is also under the advisory. No other Cabell County customers are effected.

West Virginia American Water says customers on Queen Shoals PSD, Lincoln PSD, and Reamer Hill are also impacted by the advisory.

Customers in nine other counties are unaffected.

There have been no immediate reports of illnesses from the spill.