Police have reported a fatality in Southwater Country Park today (Saturday September 29).
A police statement says that emergency services went to the park following the report of concerns for a male in a vehicle.
As a precautionary measure roads within the park were sealed off for a while.
Police are not looking for anyone else involved in the fatality.
The statement adds that the incident was quickly resolved by Sussex Police and their partner agencies, who would like to thank the public for their assistance.