After his account was briefly suspended, he was back tweeting on Saturday, until being banned from Twitter for seven days.
Met Police Officers in Tower Hamlets issued a statement on Saturday saying: “We have received a number of reports relating to alleged anti-Semitic tweets posted on social media.
“The Met takes all reports of anti-Semitism extremely seriously. The relevant material is being assessed.”
There have also been protests against Twitter over its initial handling of the incident, including a 48-hour “walkout” by high-profile Jewish figures including Tracy-Ann Oberman and historian Simon Sebag-Montefiore.
The Community Security Trust criticised the platform for allowing the tirade to continue unchecked for several hours, calling for tougher regulations.
It too had contacted the Met over the tweets, and was “pleased” that they were investigating.