Emergency services have been called to Seaclose Park in Newport this afternoon (Monday).
The Thames Valley Air Ambulance has landed at the site.
Officers from Hampshire Constabulary are also in attendance and have erected a cordon.
A spokesperson for the force said:
"We were called at 12:57pm today, 12 July, to assist our colleagues in the ambulance service with a concern for welfare at Seaclose Park.
"This is a medical incident."