The ruptured tank contained about 900,000 gallons (3.4 million liters) of white liquor, and tests confirmed that contamination entered the nearby Columbia River, officials have said.

With nine other people still missing, governor fears ‘deadliest industrial tragedy in modern Washington state history’

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.