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Evacuation ordered after white phosphorus leak at US base in South Korea
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Evacuation ordered after white phosphorus leak at US base in South Korea

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(Update: )
country in East Asia
  • South Korean officials ordered a temporary evacuation of residents near the US Osan Air Base due to a reported white phosphorus leak.
  • Authorities established a safety perimeter around the base and advised civilians to avoid skin exposure.
  • The evacuation order was lifted after decontamination work was completed, ensuring the safety of the local population.
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On July 27, 2026, South Korean authorities issued a brief evacuation order for residents near the US Osan Air Base, located in Pyeongtaek, following reports of a white phosphorus leak. The incident was detected around 5 p.m., prompting officials to advise nearby civilians to relocate to safer areas and avoid any skin contact with the substance. Police established a safety perimeter of approximately 1,000 to 1,700 feet (300 to 500 meters) around the base, restricting pedestrian access and rerouting vehicles to ensure public safety. The evacuation order was lifted several hours later after decontamination efforts were completed, with no immediate reports of significant disruptions or accidents in the area. The US 51st Fighter Wing, while not confirming the leak, stated that a safety cordon was established due to a ground mishap and emphasized their commitment to the safety of service members and local residents. US Forces Korea did not provide additional comments regarding the incident, leaving some uncertainty about the specifics of the situation and the potential risks involved.