Hampshire Police remained in Parkhurst Forest on Sunday after a number of items were discovered by a dog walker, sparking a search in a cordoned-off area.
The search began on Friday, at around 3pm.
Hampshire Constabulary told Isle of Wight Radio that there was no danger to the public and released a statement:
"At around 3pm on Friday, August 24, a dog walker in Parkhurst Forest found a number of items believed to be connected to crime. Police were called and the area was cordoned off .
A cordon still remains. There is no danger to the public in the area. It is believed the items have been there for some time and are not connected to recent activity . Officers from Hampshire Constabulary are continuing their investigation."
A spokesperson told Isle of Wight Radio that there is no link between their presence in the forest and the case of missing Islander Damien Nettles who disappeared from Cowes in 1996.