Radar footage of a chase between two fighter jets and a mile-wide fleet of 1,900mph UFOs is being studied by defence chiefs.

Up to 300 locals reported witnessing the astonishing hot pursuit’ of up to 12 mystery craft flying in unison in the skies over the US state of Texas 15 years ago.

But military top brass failed to acknowledge the incident took place or offer any explanation of what the F-16s were chasing. At first the US Air Force denied any of its jets were in the area at the time.

Then it conceded there had been an internal communications mistake and aircraft had been near the remote town of Stephenville when hundreds of locals reported the pursuit.

To read more, click here.