Oscar-winning British actress Rachel Weisz has given birth to her first child, a baby boy, in New York. 

The 35-year-old's spokeswoman said both mother and child were "happy, healthy, wonderful" but did not disclose the baby's name.

Weisz, who won an Academy Award for best supporting actress for The Constant Gardener, is engaged to film director Darren Aronofsky.

She gave birth on Wednesday in a hospital near their New York home.