British multimillionaire Arron Banks has repeatedly denied allegations about his receiving any money from the Russian government when bankrolling the Leave.EU campaign in the UK's withdrawal from the bloc.

Axar.az reports citing Sputnik.

Investigating British multimillionaire Arron Banks' alleged links with Russia, the UK's National Crime Agency (NCA) obtained a cache of emails belonging to Brexit's largest donor, which revealed previously undisclosed meetings between Banks and the Russian ambassador in London, The Times reported.

"Let them investigate. All of this just makes me look like an international man of mystery," Banks has said while commenting on a possible probe.

In the run-up to the Brexit vote, at least three business deals were on Banks' table, with one of them related to a stake in Russia's state-owned diamond mining company Alrosa, according to the emails.

For his part, Nigel Farage, former leader of the nationalist UK Independence Party (UKIP) and one of the leaders of the Leave.EU campaign told the BBC that there was "no evidence" that Banks had done anything wrong.

"I find this whole world of endless accusations being made without any proof quite extraordinary," Farage said.

Russia's own alleged meddling in the Brexit vote came to the fore as the NCA moved to cooperate with US special counsel Robert Mueller, whose team is investigating alleged Russian interference in the 2016 US presidential election. Moscow rejects all the allegations as unfounded.