LOS ANGELES (Reuters) - Oscar-winning actress Angelina Jolie is pregnant with a child fathered by her long-rumored paramour, actor Brad Pitt, his spokeswoman said on Wednesday.

Publicist Cindy Guagenti also confirmed reports that Pitt has filed papers to become the legal adoptive father of Jolie's two adopted children, son Maddox, 4, and daughter Zahara, who is about 10 months old.

Guagenti confirmed Jolie's pregnancy but declined to give further details, including when the baby was due, or to say whether the couple had plans to marry.

Representatives for Jolie were not immediately available for comment.

News of Jolie's pregnancy was first reported on Wednesday by People magazine, which quoted the actress as telling a charity worker in the Dominican Republic, where she is working on a movie, "Yes, I'm pregnant."

The magazine said the 30-year-old actress is expecting her baby this summer.

Pitt, 42, and Jolie met while working together on the film "Mr. and Mrs. Smith," in which they played married assassins ordered to kill each other.

They have been romantically linked in the media since 2004 and the rumors heated up after Pitt and his ex-wife, former "Friends" star Jennifer Aniston, split up last January.

Pitt's divorce became final in October but he and Jolie have until now publicly denied being anything more than friends.

Jolie, who won an Academy Award as best supporting actress for playing a psychiatric patient in "Girl, Interrupted," was divorced from actor Billy Bob Thornton in 2003. Before that she was married to actor Jonny Lee Miller, who she divorced in 1999.

A spokesman for Aniston said the actress would have no comment. "Jennifer is not in the practice of commenting on the lives of other people," he said.

Thank you for posting.

If that's true, then I'm happy for them. I really don't care what happened between Brad and Jennifer (although I like Jen!), it's their lives! They've both moved on. So, congrats!

*~aww congrats to them~*

It was all over the news last night......I am SOOOOOOOOOO happy for them....Brad wanted kids so bad. I am so glad it finally coming true for him...and Angelina will be a great mother.

I wish them TONS and TONS of happiness.

they sure don't waste their time
and of course this relationship won't last either

im happy for them
hope that the relationship lasts

What is with all the eye rolling. Rude much. I don't give a **** what has happenend with those three. I mean Angelina, Jen and Brad. None of my **** business. Jen and Brad cleary have moved on. Angelina and Brad seem to really love each other so whatever happened doesn't matter. I am very happy for them. Brad has always wanted kids. I am glad his wish is coming true no matter who it is with. How can you say it won't last? ok sure it might not and it might, but you can't see the future. How the hell do you actually know. Judgemental much. Perhaps a celebrity couple can actually work out no matter how they started dating. Someone posts good news about someone and I see eye rolling. I am disappointed.

i know it won't work because it's them. it won't work with them just like it won't work with tom and kate.
you have your right to think i'm judgemental, but maybe you'll change your mind when they break up

UM, lmao, I hope they will be happy.