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.

Authorities have confirmed that one person died and 9 others remain unaccounted for after a chemical tank imploded at a pulp and paper mill in Washington state

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.

A tank of 'white liquor' ruptured at the Nippon Dynawave plant in Longview.

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

The company said it’s evaluating impacts to shipments following an incident Tuesday at Nippon Dynawave Packaging, which produces paperboard cartons, cups and other products.

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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