Nigel Farage has branded Andy Burnham a โ€œliarโ€ after furiously rubbishing the Prime Minister’s bombshell claim that Russia influenced the Brexit referendum. The Reform UK leader’s comment comes a day after the Prime Minister told a podcast interview it was โ€œclearโ€ that Russia had interfered in the 2016 Brexit referendum.

But when Mr Farage was asked whether Mr Burnhamโ€™s claim โ€œtainted the resultโ€, Mr Farage replied: โ€œThe Prime Minister is a liar.โ€ He added: โ€œThere was no Russian interference, and the Russia hoax has run all the way through this. And I particularly have to mention my friend and supporter Aaron Banks, who was severely libelled over this, but in the end, Iโ€™m pleased to say, won in the High Court.

“This is Burnham. This is an out-of-touch, out-of-date Andy Burnham, with all sorts of bizarre ideas.โ€

Mr Burnham, who is set to give a Commons statement on Monday, told The Rest Is Politics podcast that the UK and its allies had been โ€œtoo much on the back footโ€ when confronting Russian interference and โ€œhavenโ€™t informed people sufficiently about the extent to which people are seeking to disrupt the political process from overseasโ€.

But speaking to Times Radio on Monday, Foreign Office minister Stephen Doughty declined to provide details on what form Russian interference took in 2016 and whether it was successful.

He said: โ€œIโ€™m not going to get into the specifics of Russiaโ€™s actions against the UK, but what is clear is that Russia is attempting to interfere in democratic processes, not just in the UK but across Europe.โ€

Mr Doughty added that Russia was spending ยฃ1.5billion on disinformation this year and called for a โ€œwhole of society effortโ€ to respond to the threat Moscow poses to British democracy.

Asked whether interference could have changed the result of the 2016 referendum, he said: โ€œThe result is the result, and I think the Prime Minister has been very clear that heโ€™s talking about attempts to interfere.

โ€œThe security minister has spoken about this before. Iโ€™m confident that both the British people and the British state are able to respond to and defend against these types of threats, but we need to be very honest that those threats exist.โ€

Later, Mr Doughty told LBC he did not think Russiaโ€™s attempts to interfere in the referendum had been successful.

Mr Burnham is expected to tell MPs in the Commons that it would be a โ€œdereliction of dutyโ€ not to seek a new deal with the EU.

It is understood that he will reiterate his argument from the Labour Party conference that Brexit has done โ€œmore harm than goodโ€.