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Residents briefly evacuated after suspected white phosphorus leak near Osan Air Base

Authorities ordered a temporary evacuation after a suspected white phosphorus leak at Osan Air Base; the order was later lifted after decontamination.

Published Jul 28, 2026, 3:35 PM EDT | LehighValleyLive

SEOUL, South Korea — South Korean officials briefly ordered residents near a U.S. military installation south of Seoul to evacuate Tuesday after authorities reported a suspected white phosphorus leak at Osan Air Base. The precautionary order was lifted later in the evening after emergency crews completed decontamination work and determined it was safe for residents to return.