UCLU Friends of Palestine Society President Yahya Abu Seido seen captured in a video threatening pro-Israel students. Photo: Video Screenshot/CAA.

British police are actively investigating antisemitic social media postings of a student believed to be the ringleader of last week’s violent anti-Israel protest at University College London (UCL), a spokesman from a watchdog group told The Algemeiner on Tuesday.

According to the Campaign Against Antisemitism (CAA), the Metropolitan Police Service is “currently reviewing evidence” it provided on tweets written by Yahya Abu Seido, president of the UCLU Friends of Palestine Society.

Though Abu Seido’s Twitter account is set to “private,” the CAA said in a statement that it obtained numerous tweets that violate the International Definition of Antisemitism.

In one instance, the CAA said, Abu Seido invoked the classic trope of Jewish control, writing: “Zionists own the economy,” and referring to the media as “Zionist.”

In a tweet from July 2015, Abu Seido compared Israel to the Nazi regime.

That same month, he wrote that “ISIS serves Israel.”

The CAA said it also found video footage of Abu Seido at the UCL protest telling Jewish students, “I hope you guys will think twice now next time you think about coming here.”

As reported by The Algemeiner, police were called in to intervene after protesters stormed a pro-Israel presentation at the university, hosted by CAMERA on Campus and the Friends of Israel student group. 

Footage of the event shows police warning attendees not to leave the room without a security escort, due to a deteriorating situation outside. As attendees were escorted out, they were met with chants of, “Shame! Shame! Shame!”

Shocking testimony from a female Jewish student at the event related how members of the angry mob “weren’t afraid to hurt girls.”

“They approached and I was pushed against the doors by one of them — a girl. I was held there for about two minutes. Her back was to me and she was pressing me against the door. She didn’t move. Then her friend came and she moved. She took a step forward, but she still stood in front of me the whole time,” she said.

UCL and its student union claimed in a statement following the demonstration that while they do not “condone acts of intimidation or violence under any circumstances…the protest was nonviolent.”