The air ambulance has landed in Christchurch Park in Ipswich after being called out to a medical emergency.
The East Anglian Air Ambulance landed in the park shortly after 2pm on Friday.
A spokesman said the service was dispatched at 1.30pm from Cambridge.
Police were also called to the incident, with a spokesman confirming paramedics were attending a medical emergency in Clarkson Street, near Ipswich town centre.
The condition of the patient is not currently known.
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