FRENCH President Emmanuel Macron has condemned as “unspeakable” Holocaust-denying graffiti daubed on a memorial to one of the country’s worst Nazi atrocities.

Officials in the village of Oradour-sur-Glane near Limoges in central France discovered the word “lie” scrawled on the wall at the entrance to the Centre for Remembrance on Friday.

At least 642 residents were massacred there by Nazi troops on June 10 1944, four days after the D-Day landings.

They had been rounded up in churches and barns while the village was torched by the SS Das Reich division.

It is believed the killings were in retaliation for the kidnapping of a German soldier by the French resistance.

A new village has been built nearby, but the old village’s ruins are preserved as a memorial and reminder of the massacre.

Prime Minister Jean Castex said that the graffiti “dirties the memory of our martyrs.”

Mr Macron vowed to find those responsible and bring them to justice.

Justice minister Eric Dupond-Moretto said: “Shame on those who did this. All will be done to find and judge those who committed these sacrilegious acts.”