Bradley Cooper and Suki Waterhouse reportedly split after two years together

Bradley Copper and Suki Waterhouse are believed to have split after two years together.

American Sniper star Cooper, 40, and Waterhouse, 23, split in January, but attended the Oscars together as friends, according to People magazine .

It is unclear whether the split is temporary or permanent.

The couple started dating in 2013 when they were spotted together in Boston before making their first official appearance together at the premiere of Cooper’s film American Hustle in December later that year.

The pair have been notoriously private about their relationship, but Waterhouse did open up to ELLE about meeting Cooper for the first time at the ELLE Style Awards in February 2013.

"I don't talk about my boyfriend because it's boring," she told the magazine. "But we did meet at the Style Awards, I’ll give you that.

"Look, maybe it's best for me to say, 'I'm not one of those girls who goes on about their boyfriends.' I do think whatever I say will sound weird.

"But the truth is, if I start talking about him, I probably won't be able to stop. And I don't really want to talk about him, you know?"

The pair will have plenty to keep them busy with Waterhouse currently promoting her new film Insurgent and Cooper busy filming Joy alongside Jennifer Lawrence, as well as the Netflix reboot of Wet Hot American Summer.