Meanwhile, Britain on Monday urged the United States to honor free-trade commitments made at the G7 summit even after US President Donald Trump rejected a joint communique in a bitter spat over tariffs.
According to the global news agency his move "torpedoed what appeared to be a fragile consensus on a trade dispute between Washington and its top allies", Canada and the European Union among them.
The photo, posted on the official Instagram account of German chancellor Angela Merkel with the title: "Day two of the G7 summit in Canada: spontaneous meeting between two working sessions", spread like wildfire all across social media platforms with some likening it to The Apprentice while others to a Renaissance painting.
Trump lashed out again at U.S. allies Monday in Twitter messages focusing on "massive trade surpluses" that he said the United States has endured "for decades" with its closest allies. "And then hope that the European Union will respond again with the same unity".
It shows a standing Mrs Merkel, hands firmly planted on a table, staring down at USA president Donald Trump, who is seated with his arms folded.More news: Dennis Rodman to Travel to Singapore for North Korea Summit
More news: USA net neutrality rules expire, court battle looms
More news: Trump lashes out at United States allies in Twitter rant
His comment sparked a new diplomatic spat between Trudeau and the Trump administration and led Chancellor Merkel to criticize Trump's handling of the matter. "The withdrawal by tweet is, of course, sobering and a bit depressing as well", she told Germany's Anne Will talk show on Sunday evening.
President Trump left the meeting half-way, warning the G7 nations that if they don't remove trade barriers with the US, they will face consequences.
"PM Justin Trudeau of Canada acted so meek and mild during our @G7 meetings only to give a news conference after I left saying that, "US Tariffs were kind of insulting" and he "will not be pushed around".
According to Merkel, the return of Russian Federation in the G8 format is possible with visible progress in the implementation of the Minsk agreements.
Merkel shared a photo of herself, leaning toward the president, who appears with his arms crossed.
Trump has been on a tear about German trade and cars in particular, bringing up the issues with other European leaders with whom he has met over the last few months, the source said. It also says the countries will work to promote low or no tariffs in order to promote trade between them.