Summer Phoenix and Casey Affleck Photo by: David Fisher / REX

Casey Affleck and wife Summer Phoenix welcomed a second child, a son, the actor's rep says.

No other details have been announced.

Affleck, 32, and Phoenix, 30, who were married in June 2006, also have 3-year-old son Indiana August.

Affleck stars in Gone, Baby, Gone , directed by brother Ben Affleck . Phoenix is the younger sister of actors Joaquin and the late River Phoenix.