SEOUL, South Korea — Seoul Metropolitan Police authorities advised that on Wednesday, August 22, at approximately 2:00 p.m. an air-raid siren will sound for one minute to signal the start of a nationwide civil defense drill. Pedestrians in open and public areas should seek shelter in nearby buildings or subway stations. All drivers/vehicles on the road must pull over and come to a complete stop. At approximately 2:15 p.m. a second siren will sound, signaling the conclusion of the drill. Local authorities will give further instructions if necessary.
Source: United States Embassy