The Air Accident Investigation Branch (AAIB) confirmed the collision of an airplane and a helicopter in Buckinghamshire in the UK.
The BBC reported on Friday that GMT 12:06 am the emergency service was called to the Buckinghamshire's Elburi, and the accident was reported to Elburi.
The South Central Ambulance Service said, "We were informed by phone here that Elboururi was informed about the accident in the sky in Winchanden. We sent rescue teams there.
"There have been several casualties. At this moment we can make sure that. "
AAIB team has already moved on the way to investigate the situation.
A spokeswoman for the Wickham Air Park said that both the airplanes flew to the sky from an airfield near Hi Wilk.
Police, ambulance and fire service personnel from Elbauerie, Haddenham, Oxfordshire and Berkshire have reached the spot.
Their primary goal is to protect the lives of the casualties, police said.