AP
Liv Tyler has given birth to a baby boy 'six weeks and a half weeks early'.
The actress and her partner David Gardner were said to be 'very happy' and their first child together is 'healthy'.
The baby joins Liv's son Milo, 10, and David's seven-year-old Gray, the couple's sons from previous marriages.
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A representative for Liv confirmed the news to People magazine, adding: "He's healthy and everyone is very happy."
The couple haven't yet named their newborn.
Liv, who confirmed she was pregnant last October, and has posted snaps of her bump on Instagram, has spoken in the past about her excitement at adding to her family with sports agent David.