Justin Theroux nearly died on his honeymoon.

Justin Theroux and Jennifer Aniston

Justin Theroux and Jennifer Aniston

The 'Leftovers' star - who tied the knot with Jennifer Aniston in August this year - has revealed he nearly lost his life when he went scuba diving in Bora Bora following the pair's nuptials.

He recalled how he was enjoying "the pretty fish" and coral with a group of friends and an instructor who didn't speak much English, when he realised his oxygen tank was low.

Because of the language barrier, the instructor didn't understand the gravity of the situation.

He explained: "He just kept swimming away from me. I got to my friend [and said], 'Dude, look.' And he said, 'Oh my God, you are about to die.'"

However, after a second attempt, Justin's instructor realised he needed to act quick.

Speaking on Live With Kelly and Michael, he added: "He pulls the emergency respirator out, puts it in my mouth, hits this clear button, which sends all these bubbles out, and it sends water down my throat. So now I'm also linked to this jerk because now I have to swim alongside him and finally he rolls his eyes and we go up.

"I'm just looking at this guy through my mask [thinking], 'I'm going to murder this guy.' I was going to throw the biggest haymaker!'"