Bruce Willis has become a father again after his fourth daughter was born yesterday.

The Hollywood action man, who has three grown-up girls from his marriage to Demi Moore, welcomed a baby daughter called Mabel Ray with his second wife Emma Heming.

A spokesperson for the Die Hard star told People.com that the new parents "are overjoyed about the newest member of their family," adding, "Both mother and baby are healthy and doing beautifully."

Heming gave birth to the baby in Los Angeles and the tot weighed in at nine pounds, one ounce (4.1 kilograms).

Willis who married Heming in 2009, is also dad to 23-year-old Rumer, 20-year-old Scout, and 18-year-old Tallulah, with his ex-wife Demi Moore.