An unknown number of injuries were also reported at the Nippon Dynawave Packaging Company in Longview, Wash., the authorities said.

A tank of white liquor imploded at the Nippon Dynawave Packaging Company in southern Washington state on Tuesday.

A tank of white liquor imploded at the Nippon Dynawave Packaging Company in southern Washington state on Tuesday.

An explosion at Nippon Dynawave’s Longview, Washington chemical plant injured several workers with chemical burns, officials said Tuesday.

Multiple people were left with chemical burns and other injuries after an \

First responders are at Nippon Dynawave Packaging in Longview, ‘following the rupture of a tank containing white liquor,’ officials said

SAN FRANCISCO -- Multiple injuries were reported Tuesday morning after fire authorities announced a "major chemical explosion" at a facility in Longview, the US state of…

Nippon Dynawave Packaging Co. and local law enforcement said the tank's rupture caused "multiple critical injuries" as well as fatalities.

An unknown number of injuries were also reported at the Nippon Dynawave Packaging Company in Longview, Wash., the authorities said.

Nine patients from the site were taken to the PeaceHealth St. John Medical Center in Longview, the hospital told ABC. One had succumbed to their injuries.

Nippon Dynawave Packaging in Longview confirmed that several workers died when the toxic tank burst at 7.15am Tuesday. An official described the horror as a 'mass casualty scene.'

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Local officials released a joint statement saying a tank containing white liquor, a chemical used in the paper pulping process, had ruptured early Tuesday morning.

Nippon Dynawave Packaging Co. and local first-response agencies confirmed that there had been fatalities.

Several injured people have been transported to hospitals to be treated for chemical burns.

Authorities say no public threat after deadly chemical leak at Washington facility

A chemical tank exploded at a Nippon Dynawave Packaging plant in Washington state. The incident caused multiple deaths and critical injuries. Emergency responders were at the…

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Nippon Dynawave Packaging Co. is a pulp and paper mill and liquid packaging plant along the Columbia River in Longview, Washington.

LOS ANGELES, May 27 — A number of people have died and several have been badly injured after a chemical leak at a plant in the northwestern US state of Washington, officials…

A number of people have died and several have been badly injured after a chemical leak at a plant in the northwestern U.S. state of Washington, officials said Tuesday.