London Mayor Sadiq Khan (center) and Chief Rabbi Ephraim Mirvis (right) attend Yom HaShoah, the Jewish Community's Holocaust Remembrance Day, in London, in May last year | Jack Taylor/Getty Images Sadiq Khan goes on offensive against anti-Semitism Hate crime in the UK spiked after Brexit.

London's mayor on Monday called for a zero tolerance attitude to hate crimes in the wake of a spate of anti-Semitic attacks over the weekend in the city, the Guardian reported.

Sadiq Khan, who met genocide survivors to mark Holocaust Memorial Day, which takes place January 27, said London remained "inclusive and global," and asked “all Londoners to report any form of hate crime."

He said: "A brick with a swastika on it thrown through a window of a Jewish home is not a trivial matter and needs to be addressed."

Figures published by the U.K. Home Office in October showed incidents of racist and religious abuse in the month after the Brexit vote were 41 percent higher than in the same month a year earlier.