Germany’s Foreign Ministry said Thursday it had opened an investigation after learning that the head of the country’s mission to the Palestinians had “liked” anti-Israel tweets, including one featured on American white-supremacist David Duke’s page.

The comments came after top-selling Bild newspaper reported that the “likes” came from the verified Twitter account of German diplomat Christian Clages, @GerRepRamallah.

The multiple “likes” included one for a video praising an attack by Palestinians on Israeli soldiers, and another for a tweet downplaying rock-throwing by Palestinians, a tactic which has killed several Israelis and wounded many others.

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The latter tweet showed photos of Brazilian soccer player Neimar during an exaggerated reaction to a foul, and said “Israeli soldiers when a Palestinian kid throws a rock at their tank.”

German top diplomat in Ramallah likes #antisemitic tweets and posts approving comments. Christian Clages, head of #Germany's representative office in Ramallah used the official Twitter account @GerRepRamallah for this, as @BILD reveals.https://t.co/OaL3mWbOsK — Olof Brunninge (@Obg97602993) July 18, 2019

Other tweets backed by the German diplomat included one by an activist asking “when will Israel occupy the moon?” –a likely reference to Israel’s Beresheet moon mission — and another claiming that the Jewish state only “respects its own religious holidays.”

Another “like” related to an exchange between Duke and another user about an alleged massacre committed by Jewish pre-state militia fighters in 1948.

Duke, an anti-Semitic conspiracy theorist and Holocaust denier, wrote on April 10 that “On this day 71 years ago, Jewish supremacists invaded the Palestinian village of Deir Yassin, where they slaughtered men, women and children. Innocent Palestinians were mutilated, raped and paraded through Jewish neighbourhoods before being summarily executed.” That account contains disputed details alleged by controversial historian Benny Morris. Other studies say there is no evidence for rape or parading of bodies.

A user commented by correcting the term “Jewish” in the tweet to “Zionist.” That comment was “liked” by Clages.

The report said the envoy had described as “required reading” an article that compares the work of the Yad Vashem Holocaust memorial to the history of “totalitarian states.”

“The Foreign Ministry disassociates itself emphatically from the tweets mentioned,” the ministry said in a written statement to The Associated Press. “The content is unacceptable and contradicts the views of the German government.”

It said it has initiated an in-house investigation to determine “how these ‘likes’ came about and will then determine consequences.”

The ministry said “Clages has explicitly distanced himself from the statements in the tweets.”