India, May 27 -- At least one person has been killed and nine others remain missing after a massive chemical explosion at a paper mill in Longview, Washington in the United States. Several others, including workers and a firefighter, were also injured in the incident.

The explosion occurred around 07:15 local time at the Nippon Dynawave Packaging facility, located about 130 miles south of Seattle. Authorities confirmed that the blast was caused by the rupture of a large storage tank containing "white liquor," a highly corrosive chemical used in the paper manufacturing process.

Emergency officials said recovery operations remain extremely challenging due to ongoing safety risks at the site. The damaged chemical tank is still considered u...