A professor who claimed “Israelis blew up Twin Towers” has prompted a Jewish group to demand the University of Sussex in England strip him of his emeritus status.

Kees van der Pijl, who retired from his post as head of the university’s Department of International Relations in 2012, tweeted on Saturday, “Not Saudis, Israelis blew up Twin Towers with help from Zionists in U.S. govt.”

The professor, who is originally from the Netherlands, linked to an article titled “9-11/ Israel did it” from Wikispooks, a website that has been debunked as a non-credible source. The site claims “Zionist Jews” control the U.S. media and government. Businessman Larry Silverstein is described as a “greedy Jew” in the anti-Semitic screed.

The Sussex Jewish Representative Council (SJRC) condemned van der Pijl on Tuesday for disseminating “conspiracy theories.”

“We ask that [Sussex University] investigate immediately & consider removing his ‘emeritus’ status,” the group continued. “This type of hate-mongering has no place in society, least of all in academia.”

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