California chemical tank leak triggers mass evacuation as U.S.-Iran talks advance

More than 50,000 people were evacuated in Southern California after a failing industrial tank at GKN Aerospace began leaking methyl methacrylate, a volatile chemical used to make plastics. The tank was estimated to hold about 7,000 gallons, and California Gov. Gavin Newsom declared a state of emergency as crews confronted the risk that the vessel could explode.

Officials said the crack in the tank was a potentially positive sign because it may have meant the chemical was venting, but they did not treat the situation as over. The leak involved an extremely hazardous substance at an aerospace facility, and the scale of the evacuation reflected how quickly a local industrial failure became a public-safety emergency for entire neighborhoods and surrounding communities.

The episode underscored a familiar California burden: communities near industrial sites often absorb the danger when equipment fails, while the response falls on residents, first responders, and state agencies racing to contain exposure and prevent a blast. With Newsom’s emergency declaration, the state moved into a more urgent posture as the evacuation zone expanded around the site.

At the same time, a separate crisis with global stakes was moving forward in Washington and Tehran. CBS News reported that Iran was reviewing the latest U.S. proposal for a potential deal to end the nearly three-month war that has sent global fuel prices soaring. President Donald Trump said he would wait “a couple of days” for Iran’s response and said his team was “pretty impressed” by Iranian negotiators.

The talks were tied to broader efforts to de-escalate the conflict, including discussions about reopening the Strait of Hormuz, a vital passage for global energy shipments. U.S. officials and negotiators were also weighing continued sanctions pressure on Iran and Hezbollah-linked figures, signaling that even as diplomacy advanced, the economic and security pressure campaign remained intact.

In Congress, House Republicans scrapped a vote Thursday evening to limit Trump’s war powers in Iran after determining they could not block the resolution. That move left the president with room to keep testing a deal while lawmakers abandoned an immediate check on executive authority.

Taken together, the day’s developments showed how public safety and national security can converge fast: one emergency threatened California communities with a possible chemical explosion, while another carried consequences for war, oil flows, and the reach of presidential power.