On 14 June 2024, a bomb threat was sent to approximately 100 organizations and public institutions across South Korea — including Incheon International Airport (RKSI/ICN), Pusan National University and Ulsan University Hospital. Authorities were notified of the threat after an employee at Incheon International Airport received the email written in English, claiming that explosives had been planted at the airport. Police officers deployed to the airport and other institutions that received the threat, but no explosives were found at any location. Authorities have stated that the email was likely a hoax and have launched an investigation to determine the origin of the email.