Boris Johnson has slammed Nigel Farage as a threat to national security, claiming he had "serious concerns" about Reform UK's approach to the economy and to national security.
"My concerns, and they are serious concerns, are about the approach to the economy of the Reform Party and the approach on our national security," Mr Johnson told Harry Cole Saves the West.
"I think both of those will be severely tested in the years ahead, and people want serious answers and I think that the answers are going to be Conservative answers."
When quizzed on whether Mr Farage was a threat to national security, he said: "I'm putting it in [diplomatic] speak right - I have serious anxieties."
Mr Johnson added that the "Reform gang" was "on record as saying that Nato provoked Putin’s aggression".
He said he had "confidence in the Conservatives, and I have confidence in the energy and combativeness of Kemi", despite a recent wave of defections to Reform UK.
The former Tory leader’s attack on Mr Farage’s party follows a series of former Conservatives, including Johnson allies, abandoning the party to join its insurgent rival in recent weeks.
Mr Farage has also sought to highlight immigration numbers under Mr Johnson's administration, which he describes as "the biggest betrayal in modern political history".
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Zia Yusuf blasts 'worst Prime Minister in our history' Boris Johnson: 'He would do well to disappear from public life'
Reform UK's head of policy, Zia Yusuf, has branded Boris Johnson the "worst Prime Minister" in Britain's history.
He told GB News: "Boris threw open our borders, shipped in millions of unskilled migrants and brought Britain to its knees by his obsession with net zero.
"He was the worst Prime Minister in our history and would do well to disappear from public life."
Nigel Farage says Bank of England 'turning their back' on cryptocurrency: 'It's madness!'
Nigel Farage has said Governor of the Bank of England, Andrew Bailey, is standing in the way of Britain becoming a global crypto leader.
The Reform UK leader is meeting with Governor Bailey alongside party deputy leader, Andrew Tice, this morning.
When asked if Governor Bailey is standing in the way of Britain becoming a global crypto leader, he said: "Yes. I mean the whole of the city for centuries has existed, has moved forward with innovation, seeing new products, being at the front of the line.
"And here we are with a massive global development in cryptocurrencies, digital assets, stablecoins, and it seems to me the Bank are turning their back on it completely. It's madness."
Reform UK bags another by-election win
Reform UK has seen victory in another by-election this week.
A by-election was held in the Thetford Castle ward in Norfolk yesterday.
It followed the resignation of a Labour councillor last month.
The seat was secured by Reform UK candidate Grahame Middleton, who bagged 47.3 per cent of the votes.
Labour meanwhile took home 26.7 per cent of votes, while Conservative fell in third place with 15.1 per cent.
Nigel Farage and Richard Tice visit Bank of England
Reform UK's Nigel Farage and Richard Tice are visiting the Bank of England
|X/NIGEL FARAGE
Nigel Farage and Reform UK Deputy Leader Richard Tice are visiting the Bank of England this morning.
"Just arrived at the Bank of England with Richard Tice to meet Andrew Bailey," Mr Farage posted to X.
Cabinet minister dismisses suggestions Andy Burnham could mount challenge for Labour leadership
Suggestions that Andy Burnham could mount a challenge for the Labour leadership have been dismissed as 'tittle-tattle'
| PAA Cabinet minister has dismissed suggestions Andy Burnham could mount a challenge for the Labour leadership as “tittle-tattle”.
Housing Secretary Steve Reed told Times Radio: “I’ve seen this movie before. When we were in opposition, we used to hear similar things about Keir Starmer.
"That was before he picked this party up off the floor and led us into a record-breaking general election victory.
“Now our job is to get on and change the country.”
He added: “Change is what people voted for, change is what we’re going to deliver, and I’m not going to be diverted by tittle-tattle in the papers.”