An air ambulance landed at Gainsborough Sports Centre in Ipswich as paramedics dealt with a medical emergency involving a woman.
The helicopter landed in the grounds of the sports centre around 1.40pm today, November 27.
Eyewitnesses described seeing the helicopter circle above the area for several minutes before it landed.
A member of staff said the helicopter was not attending an incident at the council-run centre.
A spokeswoman for the East of England Ambulance Service, who requested the assistance of the air ambulance, said: "We sent an ambulance, rapid response vehicle and the Essex and Herts Air Ambulance to Mildmay Road in Ipswich at around 1.15pm today after receiving reports of a medical emergency.
"Crews treated a female patient at the scene before transporting her by road to Ipswich Hospital for further assessment and care."
The air ambulance left the scene around 2.20pm.
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