Veteran actor Robert De Niro is celebrating after becoming a grandfather - his son has welcomed a baby boy.

Raphael De Niro's wife Claudine DeMatos gave birth to Nicholas De Niro at New York's Mount Sinai Medical Center on Thursday.

The tot weighted in at seven pounds, 11 ounces, according to New York Post gossip column PageSix.

Raphael is De Niro's second son with his first wife Diahnne Abbott.

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(This news article provided by World Entertainment News Network)