South Korea orders residents to evacuate after reported white phosphorus leak at US base

A suspected white phosphorus leak at the U.S. Osan Air Base near Seoul prompted nearby residents to evacuate Tuesday.
Officials set up a 300‑meter cordon, completed decontamination and lifted the alert hours later — there were no injuries reported.
White phosphorus is a controversial, highly incendiary substance that can cause severe burns, explaining the swift and cautious response.