Speaking on BBC Newsnight the Labour MP said: “We could have done more earlier. I think that’s well documented. “I think there are other people in the party that need to be investigated.” Mr Esterson also said the number of those being investigated in the party is a very small proportion in comparison to the level of membership.
He said: “0.01 percent of our membership has been investigated, it is a very small figure in the proportion of a membership of 600,000 people.
“We are still the most anti-racist party in this country but we have to be above suspicion.”
These comments come hours after Labour MP Chris Williamson was suspended less than 24 hours after he said the party was “too apologetic” when dealing with anti-Semitism.
Mr Williamson said during a Momentum meeting on Tuesday: “The party has done more to stand up to racism is now being demonised as a racist, bigoted party.
“I have got to say I think our party’s response has been partly responsible for that because in my opinion we have backed off too much, we have given too much ground, we have been too apologetic.”
A spokesman for the Labour party confirmed the suspension and said: “Chris Williamson is suspended from the Party, and therefore the whip, pending investigation.”
Labour MP Margaret Hodge tweeted: “Williamson’s comments in Sheffield re just another example of his anti-Semitism denial.
“He’s repeatedly given platform to anti-Semitic speakers and supported their cause. Zero tolerance approach means Williamson must be suspended/whip removed, nothing less will do.”
Ed Miliband, former Labour leader also took to social media to express his views on the suspension.
He tweeted: “Chris Williamson is bringing the Labour Party into disrepute over anti-Semitism. This is a test of seriousness on our part about the whole issue. Disciplinary action, not simply an apology is required.”
The Labour party has been caught up in a row over anti-Semitism since Labour leader Jeremy Corbyn shared a platform with activists who compared Israel to the Nazis during a Holocaust Memorial Day event he hosted in 2010.
Labour recently took up a new code of conduct looking to irradicate anti-Semitism, however critics have said the part has been too slow to respond to this.