Nigel Farage has challenged the contestant’s racist abuse.

UK Reform Party leader Nigel Farage has reiterated that footage showing racist comments apparently made by one of his party activists was a “set-up”.

Johnson faced angry questions from the BBC’s Question Time audience during a Channel 4 broadcast that showed Andrew Parker, a reform advocate in the UK, using a racist term about Prime Minister Rishi Sunak.

Mr Farage described the comments as a “series of indecent abuse” but suggested the man may have been paid.

In response to other comments made by Reform Party candidates in the UK, Farage said he “wants nothing to do” with them, adding that he had withdrawn his support for them.

On the same programme, Green Party co-leader Adrian Ramsay condemned Parker’s comments as “appalling” and said they were “a stark reminder of the future we could be heading into if people support reform at the polls”.

Asked about comments made by some of his candidates, he said those concerns would be appropriately investigated.

Warning: This story contains language that may be offensive

Speaking on Friday, Mr Sunak said: he comments in the Channel 4 footage “It makes me angry,” he added.

He said his daughters “had to see and hear the reformist people who campaigned for Nigel Farage” using racist language against him.

He said Mr Farage had “some questions to answer”.

In addition to the slur directed at the Prime Minister, Parker was also heard describing Islam as “the most disgusting faith” and suggesting army recruits carry out “target training” by shooting at small boats bringing illegal immigrants to the UK.

Parker said in a statement that he wanted to “profoundly apologize to Nigel Farage and the Reform Party if my personal views reflected poorly on them and brought their reputation into disrepute as this was not my intention.”

Essex Police said it was making an “urgent assessment” of the comments made in the program “to determine whether there are any criminal offences”.

The topic came up as the first question About Question Time for Leaders When an audience member asked: “What is it that attracts racists in your party?”

Mr Farage claimed he had done more to expel the far right than anyone alive in British politics.

“I took on the BNP a little over a decade ago. I told their voters, if this is a protest vote but you don’t support their racist agenda, don’t vote for them, vote for me, I have destroyed them.”

He continued to reiterate his claims made earlier in the day that Mr Parker was an actor with an alter ego, and suggested that this was a “political system of staggering proportions”.

“This is designed to hurt us, and unfortunately some people believe it.”

The BBC attempted to contact Mr Parker about Mr Farage’s comments, but he did not wish to comment.

Channel 4 News said it stood by its “rigorous and impartial journalism”, adding that it first met Parker at the headquarters of the British Reform Party and did not pay him any money.

Farage was then asked about other comments made by Reform UK candidates.

Edward Oakenfull, who stands in the Derbyshire Dales, books Offensive social media posts about the IQ of sub-Saharan Africans. Okunful told the BBC his comments were “taken out of context”.

Robert Lummes, a candidate in Barnsley North, reportedly said black people should “get out of… [their] “Lazy donkeys” and stop acting “like savages.” The comments were published by The Times on June 8, with Reform claiming at the time that they were “partial quotes out of context” and that it needed more time to respond.

Lesley Lilly, who was standing in the Southend East and Rochford area, reportedly described people arriving on small boats as “scum” and added: “I hope your families get robbed, beaten up or attacked.”

Farage said he disavowed the candidates in question, adding: “I want nothing to do with them.”

“There are people in all parties saying bad things and wrong things,” he said, suggesting this was partly a result of having to find candidates quickly after the prime minister’s surprise call for a general election in July.

Mr Lilley is no longer listed as a Reform Party UK candidate in the constituency on the party’s website, but Mr Oakenfull and Mr Lums are listed.

The BBC contacted the Islah Party to confirm whether the party has officially withdrawn its support from the three candidates.

But it’s too late to prevent them from appearing on the ballot.

Adrian Ramsay, co-leader of the Green Party, was also asked about comments made by some of his candidates in relation to the conflict in Gaza, including one candidate who compared Hamas to French Resistance fighters in World War II.

Mr Ramsay said he did not support those views, adding that any concerns would be “properly investigated through the correct channels in the party” – saying those channels were separate from the leadership.

“Unfortunately, all parties had candidates selected in this election who are no longer running,” he said.