South Korean authorities ordered a civilian evacuation Tuesday following a suspected white phosphorus leak at a US military base south of Seoul. The highly toxic substance triggered concerns for public safety, prompting the immediate response. Specialists were dispatched to the base to decontaminate the affected area. Once the zone was deemed safe, the evacuation order was lifted. The incident raises questions about safety protocols at the base and the potential environmental impact of the leak. Further investigation is expected to determine the cause and extent of the release of white phosphorus.