An RAF Tornado travelling at 517mph (832km/h) came within 22m (72ft) of hitting a drone, a report has revealed.

The jet, which was flying in formation 10 miles (16km) north-east of RAF Wattisham in Suffolk, did not see the remote-controlled aircraft, according to the Civil Aviation Authority (CAA).

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The drone pilot, which reported the incident, said there was a high risk of collision.

The CAA Airprox board’s report said “safety had been much reduced”.

The drone, which was carrying out an agricultural survey, was at an altitude of 100m (328ft) while the jet was at 121.9m (400ft) when the near-miss took place on 4 July.

The Airprox board said this, combined with a lack of visual warning, had resulted in “a significant and largely unmitigated safety risk” and recommended that RAF Air Command uses a system to receive notification of commercial drone operations.