One person is dead and nine others remain unaccounted for after a chemical tank holding nearly a million gallons of a corrosive liquid imploded at a Washington state paper mill, authorities said.

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