A chemical spill into a West Virginia river has led to a tap water ban for up to 300,000 people, shut down bars and restaurants and led to a run on bottled water in some stores as people looked to stock up.
Gov. Earl Ray Tomblin declared a state of emergency Thursday because of the seepage into the Elk River.
The West Virginia Department of Health and Human Resources told WSAZ symptoms include: severe burning in throat, severe eye irritation, non-stop vomiting, trouble breathing or severe skin irritation such as skin blistering.
It followed a notice from the company that the water supply had become contaminated.
Reuters and The Associated Press contributed to this report.