Joe Biden unexpectedly took a hard right turn at the G20 summit Monday.

As he headed to his final world leader summit, the 81-year-old president took a slight detour while making his way down the red carpet during his first G20 meeting in Rio.

He got off the main red carpet, which led to a ramp that other world leaders took at Monday’s meetings.

Instead, he ascended using an alternate path, turning onto a perpendicular carpet along with his escort. 

Stepping out of his presidential limousine known as ‘the Beast’, Biden walked past the signage announcing the gathering of world leaders from the top global economies.

Security measures were visibly heightened at the summit with naval vessels patrolling the scenic coastline near Rio de Janeiro’s renowned Copacabana beach. In addition, a group of soldiers in uniform, armed with rifles, stood guard outside the president’s hotel.

‘A number of leaders took the alternate red carpet path, as was planned,’ an administration official told DailyMail.com, when asked about Biden’s route. 

‘He bypassed a ramp to take him into the building. Other world leaders took the ramp,’ Fox News reported, sharing a video clip that featured the odd visual. 

White House spokesman Andrew Bates pushed back at the posting and cited security reasons.

‘As ***your video*** shows, @POTUS doesn’t leave the red carpet. There are 2 routes. He & multiple other leaders took the 2nd for security reasons,’ he wrote.

The leaders gathered inside Brazil’s Museu de Arte Moderna to hash out issues ranging from global development to tense foreign policy disputes, in a group that includes not just allies but adversaries.

 The moment came at a summit where Biden, 81, told leaders including Chinese President Xi Jinping and Russian foreign minister Sergey Lavrov that it was his last G20 summit, and that the group had it in its power to ‘usher in a new era of sustainable development.’

It came a day after he became the first sitting president to visit the Amazon Sunday. At that event, footage that showed him ‘wandering off’ into the wilderness blew up on line – but in reality the president returned on the same dirt path he came on after making remarks to the press. 

During remarks that a group of reporters were not expecting to be able to hear in person, Biden also touched on foreign policy. 

‘The United States strongly supports Ukraine’s sovereignty and territorial integrity. Everyone around this table in my view should as well,’ Biden said, on a day his deputy national security advisor blasted the Kremlin for saying it was ‘fueling the fire’ for reportedly authorizing Ukraine to use long-range missiles provided by the U.S. inside Russian territory.

He also said, ‘Israel has a right to defend itself after the worse massacre of Jews since the Holocaust. But how it defends itself…matters a great deal.’

‘We’re going to keep pushing to accelerate a cease-fire deal that ensures Israel’s security and brings hostages home and ends the suffering of the Palestinian people and children.’

That remark comes as President-elect Donald Trump is assembling a staunchly pro-Israel cabinet, even after winning key endorsements from Muslim leaders in his successful campaign to win Michigan.

The summit comes at an awkward time, in the midst of a presidential transition.

But Deputy National Security Advisor Jon Finer told DailyMail.com on the trip that Trump’s contacts with foreign leaders were ‘not unusual,’ but wouldn’t say whether the White House is keeping tabs on the interactions either with foreign governments or with the Trump transition.  

‘I guess I’d say it’s not unusual for an incoming administration or an incoming president to engage with people who will be his counterparts, and beyond that I don’t have much to say about it,’ Finer said. He didn’t respond to a question about whether the White House knows how many such calls Trump has held.