During an emergency news conference, Orange County Fire Authority Interim Chief TJ McGovern said crews have been working around the clock at GKN Aerospace, a facility that builds engine structures and other products for commercial and military aircraft, after discovering a large tank off-gassing toxic fumes<\/a>.<\/p>\n On Thursday night, authorities determined methyl methacrylate (MMA), a volatile and flammable plastic epoxy<\/a> used to create parts for the aerospace industry, was leaking from the 34,000-gallon storage tank and firefighters put critical cooling measures in place, according to a report<\/a> from affiliate FOX 11 Los Angeles.<\/p>\n 20 CHEESE FACTORY WORKERS INJURED AFTER CHEMICAL SPILL AT NEW MEXICO FACTORY RELEASES TOXIC GAS: POLICE<\/a><\/p>\n Crews in California were spotted at the scene as authorities evacuated surrounding areas. (KTTV)<\/p>\n While officials initially believed the situation was under control, allowing residents to return home, the crisis severely escalated by Friday morning.<\/p>\n “We have determined that the tank that is in the biggest crisis is in fact unable to be secured and mitigated,” said Incident Commander and Orange County Fire Division Chief Craig Covey.<\/p>\n Officials are now bracing for one of two catastrophic outcomes: The tank could fail, spilling <\/a>between 6,000 and 7,000 gallons of “very bad chemicals” into the surrounding parking lot and area, or the tank could go into “thermal runaway” and explode, triggering a chain reaction with neighboring tanks containing fuel and other hazardous chemicals, according to Covey.<\/p>\n TWO INJURED AFTER EXPLOSION RIPS THROUGH CHEMICAL PLANT, SPARKING HAZMAT RESPONSE, SHELTER-IN-PLACE ORDER<\/a><\/p>\n Multiple chemical tanks appeared to be involved in the Orange County, California, incident. (KTTV)<\/p>\n “We are setting up these evacuations in preparation for these two options: It fails, or it blows up,” Covey said.<\/p>\n He noted that while there is currently no active gas leak or toxic plume<\/a>, residents must heed the warnings immediately out of an abundance of caution.<\/p>\n Expected timelines for the potential leak or explosion were not provided.<\/p>\n WORKERS KILLED AND MANY TREATED AFTER REFINERY CHEMICAL RELEASE AS INVESTIGATORS PROBE CAUSE<\/a><\/p>\n Fire officials said a large chemical tank was at risk of spilling or exploding, possibly igniting nearby chemical tanks. (KTTV)<\/p>\n Garden Grove Police Chief Amir El-Farra said an expanded evacuation zone has been implemented to protect the public from the imminent threat.<\/p>\n “Community safety is our highest priority, and we want to see this come to a successful resolution, but we need your help,” El-Farra said.<\/p>\n Two emergency evacuation<\/a> centers have been set up for displaced families in Garden Grove and Cypress.<\/p>\n Local law enforcement and mutual aid partners remain at the scene to monitor the situation.<\/p>\n No injuries or fatalities have been confirmed, as of 1 p.m. local time.<\/p>\n Fire officials held an emergency news conference on Friday, warning of an imminent chemical spill or explosion in Orange County, Calif. (@OCFireAuthority via X)<\/p>\n Rep. Derek Tran, D-Calif., said he is closely monitoring the toxic leak and his office is in close contact with local police, fire and emergency response<\/a> officials.<\/p>\n![\"Crews](\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/05\/OCCHEMFIRE.gif\")
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