Actor Alec Baldwin and his wife, yoga instructor Hilaria Thomas Baldwin, have welcomed their second child, a son.

"We are happy to announce the birth of Rafael Thomas Baldwin," the new mom announced Wednesday morning on social media, posting a close-up photo of the baby's hand in hers. Alec Baldwin tweeted the announcement one minute afterward on his charitable foundation's Twitter page.

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The couple has a daughter, Carmen Gabriela, born in August 2013. In addition, Alec Baldwin has a daughter, model Ireland Baldwin, 19, with his ex-wife, Oscar-winner Kim Basinger.

Two-time Emmy Award-winner Alec Baldwin, 57, and Hilaria Baldwin, whose age Us Weekly gives as 31, had announced on New Year's Day that they were expecting their second child.

Amityville-born Alec Baldwin, who was raised in the Nassau Shores neighborhood of Massapequa, met his future wife in 2011 at the Manhattan vegan restaurant Pure Food and Wine. On April 2, 2012, they announced they had become engaged that weekend, with a proposal on the East End. They were wed June 30, 2012, at the Basilica of St. Patrick's Old Cathedral in Manhattan.