WATCH: Labour supporters' shocking response to Matt Hancock when he mentions 'antisemitism'

He then raises antisemitism, saying: "There is one thing that I am more passionate which is ridding the antisemitic..."

The word "antisemitic" prompts huge jeers and cries of "Oh my God!" and "Shame on you! Liar!" which drown Mr Hancock out, though he continues speaking.

He refuses to hand over the microphone as the moderator tries to take it back.

Mr Hancock later wrote on Twitter: "It's so sad. It was only about a dozen Labour hardliners - the rest of the room was shocked and disgusted. We must root out this evil." 

He later said: "We’ve got to call out antisemitism no matter what the abuse we get from a minority. Otherwise we know where it leads."