Officials in Longview, Washington, confirmed fatalities and multiple critical injuries after a chemical tank ruptured Tuesday at the Nippon Dynawave Packaging facility, triggering a major emergency response. Fire authorities said recovery efforts were still underway and that some people remained unaccounted for as crews worked through the aftermath of the rupture involving a paper-making chemical mixture known as “white liquor.”

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 say several people suffered chemical burns and inhalation injuries when a tank containing hazardous liquid imploded at a pulp and paper mill in southwestern Washington…

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 \

The implosion of a chemical tank at a pulp and paper mill in Washington state killed an undisclosed number of people, local authorities and company officials confirmed

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.

Authorities said some victims had suffered burns or inhalation injuries and there was no immediate threat to the public.

The tank contained ‘white liquor’, a corrosive substance that consists mainly of sodium hydroxide and sodium sulphide.

El depósito contenía más de 300 mil litros de “licor blanco”, una sustancia altamente corrosiva. Aún hay personas desaparecidas y se investigan las causas del colapso.

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

An implosion at a manufacturing facility in Washington killed multiple people and injured 10 others, including a firefighter.