TUV leader Jim Allister has distanced himself from a party member at an anti-Protocol rally who labelled Ulster Unionist leader Doug Beattie a "Lundy".
Roy Ferguson, a former TUV Assembly election candidate, also branded Mr Beattie a "traitor" as he addressed the protest in Lurgan against post-Brexit trade arrangements.
The demonstration last Friday in Co Armagh has faced criticism after a poster of Mr Beattie was displayed with a noose around his neck.