Rami Malek, the winner of this year's Academy Award for Best Actor, has paid tribute to his Egyptian roots.

"I am the son of immigrants from Egypt, a first-generation American," he told the audience as he collected his prize at Sunday's ceremony in Los Angeles.

Malek won the Oscar for his portrayal of Queen frontman Freddie Mercury, who was born in Tanzania. The actor praised Mercury's story as that of a gay man and immigrant who "lived his life unapologetically".