The air ambulance has been called to an incident in Sidley, Bexhill, according to a spokesman.
A spokesman for the Kent, Surrey and Sussex Air Ambulance said they were dispatched at 12.03pm but could not confirm the details of the incident.
The air ambulance reportedly landed in a park in Canada Way.
There have also been reports of police cars and ambulances in the area.
An eyewitness said she saw police and paramedics in Turkey Road, Bexhill.
A spokesman for the South East Coast Ambulance Service said paramedics were called to a private address but he was unable to comment on the details.
He confirmed the incident was the same as the one involving the air ambulance.