NEW YORK — It’s another boy for Naomi Watts and Liev Schreiber.

The couple welcomed their second son on Saturday, said Watts’ publicist, Robin Baum. Samuel Kai Schreiber weighed 7 pounds, 13 ounces.

The Australian actress, 40, and her 41-year-old actor-boyfriend are also parents to Alexander Pete Schreiber, born in July 2007.