Hawaii Five-0 Star Alex O'Loughlin & Girlfriend Malia Jones Welcome Baby Boy

Access Hollywood
Surfer Malia Jones and Alex O'Loughlin arrive at the 9th Annual G'Day USA Los Angeles Black Tie Gala at the Hollywood & Highland Grand Ballroom, Hollywood, on January 14, 2012 -- Getty Images

It's a boy for Alex O'Loughlin and his ladylove Malia Jones!

The "Hawaii Five-0" star and his model girlfriend welcomed their first child together -- a son -- on Thursday, according to E! News.

PLAY IT NOW: Access Extended: Jennifer Lopez & Alex O’Loughlin Laugh It Up In ‘The Back-Up Plan’

The couple has yet to reveal their baby's name.

Back in August, a rep for the actor confirmed to Access Hollywood that Alex was expecting a child with Malia.

VIEW THE PHOTOS: Awesome Australian Alex O’Loughlin

The new arrival is the second child for both Alex, 36, and Malia, 35.

Alex has a teenage son, 15-year-old Saxon, from a previous relationship.

Malia also has a son - Spike, 3 - whose dad is surfer Luke Stedman.

VIEW THE PHOTOS: Hollywood Dads & Their Adorable Little Ones!

-- Erin O'Sullivan

Copyright 2012 by NBC Universal, Inc. All rights reserved.
This material may not be published, broadcast, rewritten or redistributed.

VIEW THE PHOTOS: Primetime Hunks: The Hottest Guys On Television!