The PSNI is treating the painting of pro-IRA graffiti outside an Orange Hall in Co Antrim as a sectarian hate crime.
It is believed the incident outside the hall in the Main Street of Rasharkin occurred last night or early this morning.
TUV leader Jim Allister said it was a "sinister development" designed to "instil fear" in the town's unionist community.
The words "Ha Ha IRA" were painted on the footpath outside the Orange Hall.
TUV councillor Jonathan McAuley said he would be asking the local council to clear up the scene.
He said: "It is important to remember that there are many victims of IRA violence still in our community and it is particularly significant that the graffiti appeared just days before we as Orangemen and women mark Orange Victims' Day.
"This Sunday Orange brethren will attend services and events across Northern Ireland to remember the 339 members of the Institution who were murdered during the terrorist campaign, the vast majority by the IRA.
"September 1 was chosen as Orange Victims' Day because on that date in 1975 IRA murderers stormed into Tullyvallen Orange Hall during a lodge meeting, and murdered four Orangemen.
"A fifth member subsequently died later as a result of the injuries sustained.
"There's nothing glorious or laughable about that."
Mr Allister said: "This is a very sinister development clearly designed to intimidate and instil fear in the minority unionist community of Rasharkin.
"I trust the police will act swiftly to bring those responsible to justice."
