GPS signal interference was detected over Poland.

GPS signal interference has been observed over Poland and a warning has been issued to aircraft crews, Polish Air Traffic Agency spokesman Tomasz Modrzejewski told reporters, adding that the reasons for the interference are still unknown.

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“In recent hours, GPS signal interference has been observed over Poland. A NOTAM warning has been issued for pilots,” he said.

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Modrzejewski clarified that through dispatchers, crews receive additional information necessary for the planes to safely reach their destination. “Here we use our systems, radar infrastructure,” he explained.

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“We are ready for air traffic to function safely in such situations,” Modrzejewski assured.

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According to him, the reasons for the interference are still unknown.