Mel Gibson has drawn the ire of the internet once again for being caught on video saluting Donald Trump at UFC 264.
Footage from the former US President's arrival at the Las Vegas event featuring a main card fight between Conor McGregor and Dustin Poirer has gone viral, showing Gibson giving a curt salute to Trump as he waves to the crowd.
It's not clear if Trump acknowledged the gesture from the Lethal Weapon star, who infamously went on an anti-Semitic rant while being arrested in 2006, but it didn't take long for social media users to pounce on the interaction.
"I'm not surprised to see Mel Gibson salute Trump. Nazis have a history of saluting other Nazis," one Tweet read.
"How else do Nazis greet each other?" another said.
Trump has been condemned for resisting opportunities to denounce white supremacy, notoriously telling hate group the Proud Boys to "stand back and stand by" during a presidential debate along with insisting there had been "very fine people on both sides" at the deadly Charlottesville rally that saw neo-Nazis marching in the street.
Gibson's 2006 outburst - in which he claimed "the Jews are responsible for all the wars in the world" - is far from the only time he's gotten in trouble for making offensive comments. He was also condemned over audio leaked in 2010 in which he battered his then-partner Oksana Grigorieva with sexist and racist statements.
"Mel Gibson literally told his wife she'd be 'raped by a pack of [n-word]s' and they still let this trash make movies and win Oscars," one Twitter user captioned the footage of Gibson and Trump.
Other comments highlighted the fact that neither Gibson nor Trump had ever served in the military, making a salute somewhat redundant.
"Why did Mel Gibson who never served in the military salute Captain Bone Spur who dodged the draft?" a Twitter user asked.
"Mel Gibson, who has pretended to be soldiers, saluting Donald Trump, who has pretended to be President, makes a certain kind of sense," said another.
One tweet declared "rest in hell" to Gibson's "dead career", adding: "The crazy thing is, you didn't even need to know why Mel Gibson was trending to know that he probably did something shitty."
An official UFC Twitter account also posted a video of Gibson at the event expressing his excitement for the Poirier vs McGregor match.