Officials say a hazardous materials incident injured several people but there is no immediately threat to the publicSign up for the Breaking News US newsletter emailAuthorities in Washington state are responding to an “implosion” at a packaging plant early on Tuesday morning that left multiple p eople with chemical burns.The Longview fire department said in a statement there was a hazardous materials incident at Nippon Dynawave Packaging that occurred when a vat of “chemical treatment” imploded. According to the state, the plant has a kraft pulp and paper mill and liquid packaging facility, and employs roughly 1,000 employees. Continue reading... ...read more read less