The death toll from a chemical tank rupture at a paper mill in Washington state has risen to 11 after recovery teams located the bodies of all nine workers who had been reported missing following the incident, authorities said on Saturday.
The accident occurred on Tuesday at a Nippon Dynawave Packaging facility in Longview, where a tank containing "white liquor", a chemical solution used in paper pulp production, ruptured and imploded, triggering a mass casualty response.