Former foreign secretary Boris Johnson appeared to mock Theresa May as he was pictured running through what looked like a field of wheat.
The politician, who has been at the centre of a bitter row with the prime minister over her Brexit strategy, was photographed running near his Oxfordshire home appearing to recreate Mrs May's "naughtiest" moment.
While campaigning ahead of last year's general election, Mrs May memorably said the naughtiest thing she had ever done was run through a field of wheat.
Many online have expressed their amusement at the former London mayor's apparent "trolling".
The photograph emerged as Chancellor Philip Hammond launched a scathing attack on Mr Johnson, who used an interview in the Sunday Times to describe Mrs May's Brexit policy as "deranged" and "preposterous".
Asked by the Daily Mail whether Mr Johnson could become PM, Mr Hammond said "I don't expect it to happen" and suggested the Brexiteer could not do "grown-up politics".
He went on to attack Mr Johnson for having "no grasp of detail" on complex subjects like Brexit, suggesting his greatest achievement to date had been introducing the "Boris Bike" scheme while London mayor.
Reflecting on his comments, the chancellor told Sky News: "Of course Boris is a big personality - nobody's denying that - what I'm saying is that the business of government is a process of attention to detail, follow-through and lots of hard work.
"It isn't just about making flamboyant statements and big announcements - it's about getting things done."