As we've been reporting, police say it is "too early to tell" what caused an air crash on the Waddesdon Estate in Buckinghamshire.

Supt Rebecca Mears from Thames Valley Police said: "Our priority has to be with the next-of-kin, speaking to them and letting them know.

"We anticipate being here until about Monday morning, potentially longer. We do not rush these things - it's really important we do a meticulous investigation and really thorough to get to the bottom of what's happened here."

PA Copyright: PA

Forensic tents (pictured) have been put up by police at the scene.

The Press Association reports that a Notice to Airmen had been issued to warn pilots the Wycombe Air Park's air traffic control services would be closed during three 30-minute periods on selected days between 7 - 30 November, due to a "staff shortage".

The crash occurred about half an hour after the latest closure was due to end, it said.