Trump spoke to the Prime Minister on the phone as he flew to France to attend events marking the 100 year anniversary of World War One with other world leaders.
Mrs May had called Trump to congratulate him on his partys victories in the midterm elections, which saw the Republican Party win a majority on the Senate.
But the PM received a fiery response from Trump, who lambasted her over her handling of Brexit and approach to Iran, according to the Washington Post.
Under her leadership, Britain was not doing enough to contain Iran, Trump reportedly fumed.
BREXIT RAGE: Donald Trump ranted about Brexit and Iran in a phone call with Theresa May (Pic: GETTY)
Trump also reportedly moaned about “unfair” trade deals involving the EU and questioned her approach to Brexit.
Mrs May has enjoyed a cordial relationship with Trump, who she was famously pictured holding hands with at the White House shortly after he took office.
But Mrs Mays aides were “shaken by his especially foul mood”, US and European officials told the Post.
FOUL MOOD: Trump raged at May aboard Air Force One (Pic: GETTY)
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“I've a lot of respect for the Prime Minister”
Donald Trump
There has been no comment from Downing Street on the report.
In an interview with the Sun newspaper, Trump threatened to "kill" any trade deal with the UK if the PM continued with her plan for a soft Brexit.
Speaking to the paper in July, Trump said he would have handled the Brexit negotiations “much differently” and claimed Mrs May did not listen to his advice.
LUKE WARM: May's relationship wth Trump has been tested at times (Pic: GETTY)
But in a joint press conference at her Chequers residence, Trump softened his stance and barated the reporting of his interview.
"I didn't criticise the Prime Minister, I've a lot of respect for the Prime Minister,” he told reporters.
"Unfortunately, there was a story that was done which was generally fine but it didn't put in what I said about the Prime Minister and I said a tremendous thing.
"It's called fake news."</span>
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