London’s mayor has spoken of his concern following a report into the number of “anti-Semitic” incidents directed at London’s strictly Orthodox community in areas such as Stamford Hill.

Sadiq Khan, who has made zero-tolerance on hate crime a top priority, made the comments in response to London Assembly Members’ questions, after it emerged that 32 incidents had been recorded by volunteer security group Shomrim in just one month.

At the time of the report, which was made in partnership with the Campaign Against Anti-Semitism (CAA), this was described as the “tip of the iceberg” by the president of Stamford Hill Shomrim, Rabbi Herschel Gluck.

Khan said: “That number of reports in a single month is of concern to me. Hate crime is under-reported and this is particularly true with regard to hate crime affecting London’s Orthodox Jewish communities.”

The mayor described Shomrim as “instrumental in providing third-party reporting from a traditionally hard-to-reach community,” adding that the Metropolitan Police had “reached out” to Charedi leaders “to raise awareness and confidence”.