The Blue Bloods star confirmed she had wed businessman Andrew Frankel in a post on her account on Saturday (17Oct15).

"Oh, by the way, guess what I just did..." she wrote alongside an image of herself and her new husband, which she credited to her wedding photographer.

Editors at report the pair married in an intimate ceremony in the Hamptons, New York, surrounded by friends and family.

Bridget has largely kept quiet about her relationship since the pair met through a mutual friend. The actress is mother to son Jack, who she shares with her ex, New England Patriots quarterback Tom Brady.

Her new husband Andrew is a co-president of a Wall Street institutional brokerage firm, and has three sons from a previous relationship.

A source tells, "Bridget's son Jack is excited to be gaining three incredible older brothers."

Instead of gifts, the newlyweds asked guests to donate to The Hole in the Wall Gang Camp for youngsters with cancer and serious blood diseases.