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Malia Jones, Alex O'Loughlin

John Sciulli/WireImage

Alex O'Loughlin's latest assignment? Dawn patrol!

The Hawaii Five-0 hunk has welcomed a son with girlfriend Malia Jones, his rep confirmed Friday to E! News.

The baby boy, whose name the couple have yet to reveal, is their first child together. But judging by their existing progeny, this little guy's name could be a good one—O'Loughlin is dad to 15-year-old son Saxon, and Jones is mom to 3-year-old son Spike.

Jones, a competitive surfer turned model, first went public with O'Loughlin back in January at the 9th Annual G'Day USA Los Angeles Black Tie Gala in Hollywood.

E! News exclusively reported in August that they were expecting.