David Cameron has said Labour "has got a problem with anti-Semitism" after Ken Livingstone was suspended for "bringing the party into disrepute".
The prime minister said: "It is quite clear that the Labour Party has got a problem with anti-Semitism.
"I think they have got to recognise that anti-Semitism is like racism, it is unacceptable in a modern political party and every political party facing this problem has got to deal with it.
"As I said to Jeremy Corbyn some weeks ago - when I was shouted down in the House of Commons with cries of 'disgraceful' from the Labour benches - they've got a problem, it is now totally apparent they've got a problem, and they have got to deal with it."
Naz Shah MP has declined to comment on Ken Livingstone's suspension from the Labour Party.
Mr Livingstone was suspended after he said Adolf Hitler was "supporting Zionism" when he rose to power in the 1930s.
He made the comments during an interview in which he was defending Ms Shah, who from suspended from the Labour Party on Wednesday over "anti-Semitic" comments.
Ms Shah said "no comment" when approached by ITV News at her family home in Bradford today.
Ken Livingstone has defended his comments about Hitler supporting Zionism as "historical fact".
Around 30 Labour MPs have called for his suspension from the Labour party.
When asked if he was going to apologise he told ITV News: "For what, stating historical fact?
"I haven't offended anybody. I've stated historical fact."
Mr Livingstone spoke before he was suspended by the Labour Party.
Ken Livingstone has been suspended by the Labour Party after he said Adolf Hitler was "supporting Zionism" when he rose to power in the 1930s.
A Labour spokesman said: “Ken Livingstone has been suspended by the Labour Party, pending an investigation, for bringing the Party into disrepute.
“The Chief Whip has summoned John Mann MP to discuss his conduct."
Mr Livingstone made the comments during an interview in which he was defending MP Naz Shah, who from suspended from the Labour Party on Wednesday over "anti-Semitic" comments.
Former deputy prime minister Nick Clegg told Ken Livingstone his actions were "weird" after he said Adolf Hitler was "supporting Zionism" when he rose to power in the 1930s.
Speaking on the BBC, he said: "I never ever thought I would see the day that mainstream, well-known politicians like you would start raking over Hitler's views in a way that people would simply not understand.
"You are responsible for choosing your words carefully and not entering into this weird contorted maze which allows you to start talking about Hitler in the same breath as the Jewish community in Britain today."
John Mann MP has called for Ken Livingstone to be expelled from the Labour Party over comments he made on anti-Semitism.
Following his explosive confrontation with the former Mayor of London, Mr Mann said in a statement: "I have called for Ken Livingstone to be suspended and then expelled from the Labour Party.
"Ken Livingstone clearly hasn’t read Mein Kampf, nor has he studied history. His comments are calculated to offend and are factually inaccurate.
"A top historian would be able to tell him that in 1932 the Nazis had no such policy."
A Labour MP has had an explosive confrontation with Ken Livingstone over comments the former Mayor of London made on anti-Semitism.
John Mann confronted Livingstone who was on his way to give media interviews in Westminster, repeatedly calling him a "disgusting racist" and a "Nazi apologist".
A number of Labour MPs have called for Livingstone to be suspended after he said Hitler "was supporting Zionism before he went mad and ended up killing six million Jews".
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