A chemical tank ruptures at a paper mill in Longview, Washington, causing an implosion and leaving multiple people dead or unaccounted for, authorities report. The BBC says several people are injured and that an unknown number are missing after the tank ruptures. CBC and Fox News report one person dies and nine others remain unaccounted for following the incident. CBC adds that the tank holds nearly a million gallons of a corrosive liquid, raising concerns about exposure to hazardous chemicals. The West Australian and Daily Mail both describe the event as producing mass-casualty conditions and note that additional workers are missing, alongside reports of fatalities and critical injuries. While the number injured varies across outlets, all accounts agree the incident involves a large chemical tank at the Longview paper mill and results in at least one death and multiple missing people. Authorities continue efforts to account for affected workers and assess the scene and potential chemical risks.