Two individuals were slaughtered in every flying machine, which descended in woods close Waddesdon Estate, close Aylesbury, as indicated by Thames Valley Police.
Police boss Rebecca Mears said she couldn’t yet give out the personalities of the casualties.
“Our needs today (yesterday) stay with examining the closest relative, discovering their identity, advising them and supporting them with master officers as we advance the examination here on location,” she said in an announcement.
“We expect being here until about Monday morning, conceivably more. we don’t surge these things, it’s truly vital we do a fastidious examination and truly exhaustive to get to the base of what’s occurred here.”
Both air ship had taken off from adjacent Wycombe Air Park, a representative said.
The Air Accidents Investigation Branch (AAIB) said it was aiding the examination, uncovering that the plane included was a light Cessna.
South Central Ambulance Service said the alert was raised at 12:09 pm (1209 GMT) nearby time “to a mid-air impact including a helicopter and an air ship”.
“We sent various assets to the scene, including the Thames Valley air emergency vehicle, two rescue vehicle groups, two rescue vehicle officers, and a quick reaction vehicle,” said a representative.
Neighborhood planter Len Bellis told the Press Association that he found the “consuming destruction” after prior hearing a “repulsive clamor”, depicting the light flying machine stays as “non-existent”.