RUSSIAN GPS jamming is suspected of sabotaging EU chief Ursula von der Leyen's plane, according to officials.

The European Commission president was forced to land using paper maps after GPS systems were wiped out at a Bulgarian airport.

A jet carrying Von der Leyen to Plovdiv on Sunday afternoon lost all electrical navigation aids when approaching the city’s airport.

The incident is being treated as Russian interference, according to three officials speaking to the FT.

One of them told the paper: "The whole airport area GPS went dark. It was undeniable interference."

Von der Leyen's pilot circled the airport for an hour before deciding to land using old-school paper maps, the official said.

Plovdiv Airport's GPS could have been knocked out by jamming and spoofing.

These methods dist

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