The claim marks the first time a UK prime minister has publicly acknowledged Russia’s interference in the vote to leave the EU.

UK Prime Minister Andy Burnham has said it is “clear” that Russia interfered in the country’s 2016 Brexit vote, warning French and German voters of the same threat.

“I asked the question coming to Downing Street: Was there interference in the 2016 referendum from Russia? And I’ve had the clear answer that yes, there was,” Burnham said in an interview with The Rest Is Politics podcast released on Sunday.

Burnham’s comments mark the first time a UK prime minister has publicly acknowledged that Russia interfered in the UK’s vote to leave the European Union. Burnham did not provide evidence for or details on the claim.

He said that “these things are important now to put clearly on the record, and, I believe, help voters in Germany and France understand that some of this politics is instigated via our enemies, namely Russia.”

Burnham said he spoke with German Chancellor Friedrich Merz about possible links between Russia and the far-right Alternative for Germany party when the two leaders met last week in Berlin.

In his address to the United Nations General Assembly in September, Burnham also condemned Russia’s attempt to interfere in the UK’s 2019 general election.

According to a 2020 report by Parliament’s Intelligence and Security Committee, the UK government had failed to ask for a deep assessment of Russia’s interference in the 2016 referendum. The report did confirm that Russia had meddled in the 2014 Scottish independence referendum, however.

Russia has repeatedly denied meddling in Western democracies or interfering in another country’s elections or referendums, casting the UK as being gripped by “anti-Russian hysteria”.

UK reconsiders Brexit

Last month, Burnham argued that the UK should reconsider options for a future relationship with the EU, including rejoining the bloc, reigniting the decisive debate more than a decade after the historic vote.

He said that the UK’s departure from the bloc had failed to fulfil Brexit supporters’ pledge of “taking back control”, and instead has made the UK weaker economically and on immigration.