South Korea’s military said North Korea disrupted GPS signals from border areas for the second-straight day on Saturday, affecting an unspecified number of flights and vessel operations. While warning aircraft and vessels near western border areas, South Korea’s military did not specify how North Korea was interfering with GPS signals or detail the extent of disruptions. North Korea’s GPS signal disruptions and balloon campaigns highlight the vulnerability of South Korea’s Incheon International Airport, its main transportation gateway, analyst Sukjoon Yoon recently wrote on the North Korea-focused 38 North website. He said that in 2024, North Korean trash balloons halted the airport’s runway operations 12 different times for a total of 265 minutes. South Korean officials say North Korean activities to disrupt GPS signals from western border regions increased as the country began launching trash-carrying balloons toward the South in late May, which the North described as a retaliation against South Korean civilian activists flying anti-North Korean propaganda leaflets across the border.

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