ACCIDENT investigators were today trying to establish how a vintage plane crashed at an East Anglian air show, killing the pilot and navigator.Thousands of horrified spectators watched as the the 50-year-old Fairey Firefly nose-dived to the ground while performing a manoeuvre at Duxford airfield in Cambridgeshire yesterday.

ACCIDENT investigators were today trying to establish how a vintage plane crashed at an East Anglian air show, killing the pilot and navigator.

Thousands of horrified spectators watched as the the 50-year-old Fairey Firefly nose-dived to the ground while performing a manoeuvre at Duxford airfield in Cambridgeshire yesterday.

The dead men were named as father-of-three Lieutenant Commander Bill Murton, 45, and crew member Neil Rix, 29. Despite the tragedy, show organisers said the event would continue today.

The aircraft was flying normally in sunny clear conditions before it rolled upside down careered into a field close to the M11 motorway, well away from spectators.