
A massive chemical tank holding millions of litres of a highly corrosive liquid imploded and collapsed Tuesday at a Washington paper mill, killing at least one worker and leaving nine others unaccounted for with no hope for rescue, authorities said.

A massive chemical tank holding millions of litres of a highly corrosive liquid imploded and collapsed Tuesday at a Washington paper mill, killing at least one worker and leaving nine others unaccounted for with no hope for rescue, authorities said.