And security experts say European security services are being poorly advised on the growing threat.
First-person view drones, which allow the user to see what the drone sees in real time, and unmanned aerial vehicle drones could be used for terror attacks.
A Ukrainian source working with frontline drone teams told the Daily Mirror: "A person armed with the technology, especially an FPV drone typically used in 'kamikaze' suicide attacks - when the craft impacts directly at what it is aimed at could easily target critical infrastructure.
"Attractions like Big Ben or the London Eye are easy targets and the operator does not need to be close."
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Denne historien er fra June 17, 2024-utgaven av Daily Mirror UK.
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