Pinery Provincial Park along the eastern shore of Lake Huron has been closed to the public ``until further notice.''
The park issued a statement Thursday says the decision was made after ``a few individuals'' informed the Ministry of Natural Resources and Forestry of their intention to occupy the park.
Park officials tweeted that the individuals claim the park is ``rightfully theirs'' and that the Ontario Provincial Police have been notified.
The statement said Ontario Parks officials would ``continue talks with the individuals in an effort to resolve the matter.''
Until then, the park is closed to the public for camping and day use.
``Public safety remains our first priority and will guide our operation of the park,'' the statement added.