An airplane takes off from Incheon International Airport, Oct. 30. Korea Times photo by Choi Won-suk

North Korea was identified as the source of 331 cases of GPS disruptions reported this month, the science ministry said Sunday, noting that no major issues or damage occurred.

The Ministry of Science and ICT said it had "consistently detected radio interference originating from the Kaepung and Haeju areas of North Korea." Radio interference involves transmitting jamming signals within the GPS frequency band, disrupting the use of GPS signals.

During the first 10 days of November, 331 interference cases were recorded, with 279 targeting airplanes and 52 affecting ships. No damage was reported as a result of the disruptions.

The ministry said it has been operating a continuous monitoring system in coordination with the land and maritime ministries to ensure the safety of air and sea travel and will continue working together to maintain a high level of readiness. (Yonhap)