Jennifer Garner and Ben Affleck

Jennifer Garner and Ben Affleck welcomed their third child, US Weekly reports.

Garner gave birth to a baby boy in Santa Monica. No other details have been made public.

Jennifer Garner, Ben Affleck expecting baby No. 3

The latest addition to their family joins sisters Violet, 6, and Serafina, 3. Garner and Affleck, both 39, have been married for seven years.

A rep for the actress did not immediately respond to TVGuide.com's request for comment.