North Korea jams GPS signals, affecting ships and aircraft in South

North Korea staged Global Positioning System (GPS) jamming attacks on Nov 8 and 9, an operation that was affecting several ships and dozens of civilian aircraft in South Korea, Seoul's military said.

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The jamming allegations come about a week after the North test-fired what it said was its most advanced and powerful solid-fuel intercontinental ballistic missile (ICBM), its first such launch since being accused of sending soldiers to help Russia fight Ukraine.

The South fired its own ballistic missile into the sea on Nov 8 in a show of force aimed at demonstrating its resolve to respond to "any North Korean provocations".

"North Korea conducted GPS jamming provocations in Haeju and Kaesong yesterday and today," Seoul's Joint Chiefs of Staff said in a statement on Nov 9, adding that several vessels and dozens of civilian aircraft were experiencing "some operational disruptions".

The military warned ships and aircraft operating in the Yellow Sea to beware of such attacks.

"We strongly urge North Korea to immediately cease its GPS provocations, and warn that it will be held responsible for any subsequent issues arising from this," they said in the statement.