Bradley Cooper and Suki Waterhouse split up

LOS ANGELES - American Sniper star Bradley Cooper and British model Suki Waterhouse have split after two years of dating, People magazine reports.

E! Online was the first to break the news of the celebrity couple's separation. Waterhouse's rep declined to comment on the split and Cooper's rep did not respond to requests for comment.

It seems that Cooper, 40, and Waterhouse, 23, had ended their relationship before the Oscars in January, but remained friends and attended the awards show together. They were spotted dining together at the restaurant Nobu Malibu with another friend the next evening.

The two were first linked in March 2013 when they were spotted in Boston together. They made their debut as a couple nine months later, at the New York premiere of the critically-acclaimed film American Hustle in December 2013.

Both were extremely private about their relationship.

Waterhouse had told Elle UK: "I don't talk about my boyfriend because it's boring... At least, that's what I decided to tell you when you asked. 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?"

Waterhouse appears in the upcoming Insurgent, the second movie in the Divergent franchise.

Cooper is filming the movie Joy with frequent collaborator Jennifer Lawrence, as well as the Netflix reboot of Wet Hot American Summer.

He was seen on Wednesday night at an Elton John concert before going to the Surrender Nightclub in Encore at Wynn Las Vegas with fellow actors Jonah Hill and Miles Teller, stars of the upcoming film Arms & The Dudes, which is produced by Cooper.