A world-renowned Israeli Holocaust historian said this weekend that if he were a British Jew, he’d “be worried,” The Times reported.

Yehuda Bauer was responding to reports of rising antisemitism in the UK, particularly in the Labour Party, whose leader, Jeremy Corbyn, he said, “has a problem” when it comes to Jews.

The 90-year-old academic adviser to Israel’s national Holocaust museum, Yad Vashem, also branded former London Mayor Ken Livingstone a “violent antisemite.” He was referring Livingstone’s long history of antisemitic rhetoric, such as his controversial comment this May that Nazi leader Adolf Hitler “was supporting Zionism before he went mad and ended up killing six million Jews.”

Bauer’s comments follow the release earlier this month of a Community Security Trust antisemitism audit, which found an 11 percent rise in antisemitic incidents across Britain in the first six months of this year, as compared to the same time period in 2015.

The biggest increases, the group said, were recorded in April, May and June, months during which the Labour Party faced intense media scrutiny over claims of antisemitism in its ranks.

The Telegraph reported on Saturday that 6,000 Labour members have been reported to the party’s National Executive Committee over allegations of antisemitism and abuse. The party members face possible suspension or expulsion from Labour.

A senior Labour official told the newspaper, “The sad truth is the Labour Party is no longer a safe space for women and Jews. Party members who receive a daily barrage of disgusting abuse deserve better than for Jeremy Corbyn to attempt to downplay it or tell them to simply ignore it.”