Officials say there is no hope of finding more survivors after a tank implosion at Nippon Dynawave Packaging Co in Longview, Washington, that leaves nine workers missing. The incident occurs on Tuesday when a tank containing a chemical solution, described as “white liquor,” ruptures and releases a highly destructive, caustic mixture. One person is confirmed dead, and nine other people are reported injured, including a responding firefighter.

Authorities and responders continue efforts to locate the missing workers, but they say recovery operations depend on making the site safe first. PBS NewsHour reports that crews must stabilize the tank before any bodies can be recovered, because it is at risk of further collapse and could leak additional caustic liquid. Search efforts are expected to continue only after stabilization work reduces the likelihood of additional releases or structural failures. Across reports, officials maintain that the focus shifts from rescue to recovery once conditions allow, while responding agencies manage hazardous materials risk at the plant.