BERLIN (AP) — An American art museum has demanded that the German far-right party Alternative for Germany, or AfD, stop using one of its paintings in campaigns for the European elections.

The director of the Clark Art Institute in Williamstown, Massachusetts, Olivier Meslay, told The Associated Press late Monday "we condemn the use of the painting" Slave Market by Jean-Leon Gerome from 1866, "to advance AfD's political stance."

The painting shows a black slave trader showing a naked young woman with much lighter skin to a group of men for examination.

The AfD's Berlin branch put up 30 posters of the painting across the German capital with the slogan, "So that Europe won't become Eurabia."

The AfD, known for its anti-Muslim stance, said it won't take down any of the posters.