Ryanair boss Michael O'Leary has described the economic situation in Britain as a "car crash" caused by the country's vote to leave the European Union in 2016.
"The mini budget was a kind of spectacular failure of the whole concept of Brexit," he said at a news conference in Rome on Tuesday, adding that the first thing Britain needs is what he called a sensible trading agreement with the EU.
Britain's new finance minister, Jeremy Hunt, on Monday scrapped prime minister Liz Truss's economic plan and scaled back her vast energy support scheme in a historic policy U-turn to try to stem a dramatic loss of investor confidence.
O'Leary said he expects Truss, who became prime minister last month, to be out of a job within a week or two.
"The mini budget has been reversed. So she’s in office but not in power," he said.
O'Leary said that Truss, who had wanted Britain to remain in the EU at the time of the 2016 referendum, is paying a price for promises she made to Conservative party members who selected her to lead the country after Boris Johnson resigned.
"She got elected by appealing to all the Brexiteers for the last three months and it is the ultimate, I think, failure of Brexit and the Brexiteers," he said.
Truss struck a eurosceptic tone during her leadership campaign over the summer, tapping in to the concerns of Conservative Party members and promising to scrap all remaining EU laws that still apply in Britain by 2023.
O'Leary welcomed the appointment of Hunt, who took over as finance minister last Friday and has since rewritten government plans presented only last month.
"The Remainers are coming back, the adults are taking charge again ... we will return to some sensible economic policies," O'Leary added.