The tank ruptured Tuesday at Nippon Dynawave Packaging Co. facility in Longview, a city located along the southern Washington border with Oregon, killing 11 people.

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

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

An implosion at a chemical tank inside a pulp and paper mill in southwestern Washington on Tuesday left one person dead and 9 others missing, according to local authorities and…