A Sunshine Coast group has spoken out in anger after its billboard, arguably the most controversial sign on the Sunshine Coast, was vandalised.

The sign on the Sunshine Mwy at Maroochydore declared "No Sharia Here", and was commissioned by the Sunshine Coast Safe Communities (SCSC) group almost three years ago.

It has been sprayed over to read "No Racism Here", with the vandalism reported to SCSC on Saturday afternoon.

The group declared on social media the perpetrator supported Sharia law in Australia.

"Only those that hate equality, freedoms and western values would support Sharia and call the defence of freedoms and equality as racism," members posted on Facebook.

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