The poster was mounted at the Glück roundabout, between the A3 motorway and Bonnevoie bypass on the southern edge of Luxembourg City.

It features a photo of Xavier Bettel, the prime minister, and Corinne Cahen, the family minister, along with the DP’s campaign slogan.

Someone wrote “Juden” (German for “Jew”) with an arrow pointing to both Bettel’s and Cahen’s names.

Camille Betz, a former DP town councillor in Leudelange, posted a picture of the vandalised poster on his Facebook page on Tuesday 25 September at 7:43pm. Betz indirectly called the perpetrator an “anti-Semitic scumbag”:

Claude Lamberty, the DP’s secretary general, told L’essentiel on Wednesday that the party would file a police complaint.

Bettel, in New York for the UN General Assembly, posted a picture of himself holding a sign that reads “No tolerance for fate, #No2Antisemiticsm” on his Facebook page late Wednesday evening:

Earlier this month, campaign posters for the conservative ADR party were defaced in Bridel.