The constituency office of the DUP’s Gregory Campbell has been daubed with graffiti.
The East Londonderry MP’s Coleraine premises was defaced over the weekend.
The graffiti said “F*** Tha DUP!”.
Mr Campbell said: “This isn’t the first time a pathetic incident like this has occurred.
“What is hard to understand is how someone would think that a political figure that has been attacked, intimidated, threatened and had attempted murders made against him might be put off by a bit of graffiti that had poor spelling in it.
“In case they are unsure, I won’t be.”