BRITAIN’S new Brexit ambassador to the EU has been sucked into the Donald Trump dirty dossier affair.

Sir Tim Barrow served as a diplomat in Moscow with ex-MI6 officer Christopher Steele — alleged author of a report linking the US President-elect to Russian hookers, who he allegedly let urinate in front of him.

9 Sucked in . . . Sir Tim Barrow has been drawn into the Trump dirty dossier Credit: Reuters

9 Donald Trump has lashed out at those involved the publication of the dodgy dossier Credit: AP:Associated Press

Suspicion spread in Moscow and London and on websites worldwide yesterday that an ex-UK en­voy to Russia was involved in passing the bombshell papers to Republican senator John McCain — a sworn enemy of 70-year-old Mr Trump.

Foreign Office officials insisted Sir Tim, 52 — their London-based Political Director since leaving his Moscow post — had “no knowledge whatsoever” of the secret file.

Meanwhile PM Theresa May was facing increasing pressure to assure Mr Trump directly that British intelligence had nothing to do with the hotel hooker smear campaign.

9 There is worldwide suspicion an ex-UK envoy to Russia was involved in passing on papers to Republican senator John McCain Credit: Getty Images

9 Ex-MI6 spy Christopher Steele who has gone into hiding since the dodgy sex report came to light

9 Sir Tim (pictured on left with Chancellor Philip Hammond) previously worked as a diplomat in Moscow Credit: Reuters

In a fresh twist, it emerged McCain’s meeting may have been at the Halifax Security Forum in Canada last November.

He added: “The issue of Donald Trump and Russia was very much in the news and it was natural to talk about it.

“We also spoke about how Mr Trump may find himself in a position where there could be an attempt to blackmail him and claims there were audio and video tapes in existence.”

The Sun has learned at­ten­dees at the security conf­er­ence in­c­lu­d­ed Sir Andrew Wood, the UK’s former ambassador to Russia, and Def­ence Secretary Mi­c­hael Fallon.

It raises the possibility that Sir Andrew, 77, could also have been the link man for McCain.

Yet rumours over Sir Tim continued as he worked with Steele in the Nineties in one of the most challenging diplomatic outposts.

9 The President-elect has slammed the dossier 'fake news' Credit: AP:Associated Press

9 Sir Tim Barrow was appointed the UK's ambassador to the EU just nine days ago Credit: PA:Press Association

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Trouble-shooter Sir Tim was appointed EU ambassador nine days ago, succeeding Sir Ivan Rogers.

The only ex-ambassador to Moscow still in the civil service, he has as­sured Foreign Office chiefs he had “nothing to do with” the memos.

Steele, 52, went into hiding after angry Mr Trump called the dossier fabricated “fake news.”

Sir Andrew claimed last month that Trump had a “case to answer” over alleged Russian hacking of the US election.

A man at his home declined to comment last night.

9 Theresa May is under pressure to rule out British intelligence involvement in the dossier Credit: Getty Images

9 Trump confronted the dodgy sex dossier claims at a press conference on Wednesday Credit: AP:Associated Press

LE PEN AT TRUMP TOWER FRANCE’S far-right presidential candidate Marine Le Pen was seen in Trump Tower yesterday. The controversial National Front leader was snapped drinking coffee in a cafe inside the building in New York. But she refused to say whether she was meeting the President-elect. Ms Le Pen, 48, was believed to be with her partner Louis Aliot, who is the National Front’s vice-president. Polls suggest Le Pen is one of the top two candidates for the first round of voting in the French elections in April. She has called Mr Trump’s election an additional stone in the building of a new world.