An investigative journalist says the aircraft are now registered elsewhere
Russian oligarchs around the globe continue to face sanctions with plenty of focus on the vast wealth of Vladimir Putin's inner circle.
Many of these mega-rich figures invested parts of their fortunes in private jets some of which were on the Isle of Man air registry - that was until they were recently removed by the Manx Government following the invasion of Ukraine.
The Organised Crime and Corruption Reporting Project, is an investigative organisation tracking assets across the globe which could have been obtained illegally.
Reporter Karina Shedrofsky spoke to Manx Radio's Dave Moore:
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