Adam B. Vary
March 22, 2012 AT 10:31 PM EDT

Hilary Duff gave birth to son Luca Cruz Comrie on Tuesday night, the actress announced on Twitter today. “Tuesday evening, we became proud parents of a healthy 7 pound 6 ounce beautiful boy,” she tweeted, adding, “We are overjoyed and feel like the luckiest parents in the world. He is surrounded by so much love!! Mom and baby are both doing extremely well.” It is the first child for Duff, 24, and husband Mike Comrie.

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