Ivanka Trump briefly filled her father’s seat at a G20 event in Hamburg Saturday, putting her shoulder to shoulder with British Prime Minister Theresa May and Chinese President Xi Jinping.

A photo of the first daughter seated among world leaders during a Group of 20 session went viral when it was tweeted by Svetlana Lukash, a Russian official attending the summit. The post was later deleted.

It was no big deal, said a White House official.

President Trump had to leave the room to attend to an unknown matter, the official said. Ivanka took his seat during a discussion about a new women’s entrepreneurship fund she spearheaded.

“When other leaders stepped out, their seats were also briefly filled by others,” the official said in a statement to CNN.

German Chancellor Angela Merkel — the meeting’s host leader — discussed Ivanka’s role at the meeting with reporters.

“The delegations themselves decide, should the president not be present for a meeting, who will then take over and sit in the chair,” Merkel said, according to Bloomberg News.

“Ivanka Trump was part and parcel of the American delegation so that is something that other delegations also do. It’s very well known that she works at the White House and is also engaged in certain initiatives,” Merkel said.

Michael McFaul, a former US ambassador to Russia under President Barack Obama, wrote on Twitter that giving Ivanka a seat at the table was “strange. Very strange.”

Donald Trump Jr. chimed in, writing, “If the left is so ‘outraged’ about Ivanka sitting in for a few minutes, maybe they’d be happier if I sub in for a while??? LMK #MAGA.” The message was punctuated with an American flag emoji.