Mr Corbyn’s party campaigned to remain in the EU ahead of the 2016 referendum and he was answering questions from the press during a Labour Remain event just weeks before. After the chair called on Ms Kuenssberg to ask her question, Mr Corbyn’s supporters hissed at her, causing those around her to pull a face. Ms Kuenssberg, however, remained composed.
Mr Corbyn appeared to smirk before asking his supporters to “shh”.
Ms Kuenssberg, who is the BBC political editor, asked: “Mr Corbyn, you very clearly acknowledged this morning that immigration can put real pressure on public services and communities in this country.
“For Labour voters, what do you think is more important – defending workers’ rights, as you’ve talked about this morning, or immigration and the impact on communities in this country?
“And this morning one of your biggest supporters, the leader of the GMB, has told the BBC that Labour has failed to get its message across. Is he right?”
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BBC's Laura Kuenssberg was hissed at by Jeremy Corbyn supporters as she tried to question him (Image: GETTY)
Mrs Kuenssberg laughed awkwardly as her colleagues pulled faces in response (Image: GETTY)
The GMB is a general trade union with more than 630,000 members.
The GMB’s General Secretary Tim Roache expressed support for Mr Corbyn in 2015 when he said that the left-wing veteran would “bring back democracy to the Labour Party”.
Responding to Ms Kuenssberg's question, Mr Corbyn said: “I am looking forward to speaking to the GMB on Sunday in Bournemouth and obviously I know Tim very well and I am very happy to work with him.
“We are getting our message out as loudly as we can. All the unions that have supported this campaign – and that is the vast majority of unions, both affiliated to the Labour Party and the TUC – are getting that message out there through workplace campaigning and all their membership networks.