North Yorkshire Police were called to the White House Hotel in Whitby, at 2.40pm on Sunday 29 May following reports that a bouncy castle had come loose from its tether.
A local girl aged seven and two boys, also from Whitby, aged seven and nine were injured as a result of the incident.
The seven year old boy was airlifted to James Cook Hospital with serious injuries that are not believed to be life threatening. The girl who was injured was taken by road ambulance with head injuries (believed to be concussion) which are not thought be life threatening to Scarborough District Hospital. The nine year old boy was also taken to Scarborough District Hospital with a broken bone in his leg.
All three remain in hospital in stable conditions.
The bouncy castle was recovered with the help of officers from the North Yorkshire Fire and Rescue Service.
There is no longer any police involvement with this incident and the circumstances leading the to bouncy leaving its tether will be conducted by officers from the Environmental Health Department at Scarborough District Council.