Wiltshire Air Ambulance has been called to an emergency in Royal Wootton Bassett.
Paramedics are dealing with a medical incident at a home in Parsons Way at present (5.30pm on Wednesday).
Ambulance crews are on scene alongside Wiltshire Air Ambulance’s critical care medics.
The helicopter landed in Otter Way Play Park, off Stoneover Lane.
The exact nature of the emergency is unknown at this time.