Death toll rises to 11 in Washington tank explosion as all nine missing recovered

Two had been confirmed dead after tank containing white liquor' used in making paper pulp imploded last week

The death toll from a chemical tank rupture in the US state of Washington climbed to 11 as crews recovered the bodies of all nine missing people, authorities said on Saturday.

Two fatalities had been confirmed after the tank containing white liquor" - a chemical solution of sodium hydroxide and sodium sulfide used in making paper pulp - imploded at a Nippon Dynawave Packaging facility on Tuesday.