CNN anchor Don Lemon on Sunday tweeted MSNBC's Thomas Roberts congratulations on his marriage to Patrick Abner.

Roberts and Abner, of Merck Pharmaceuticals' HIV/AIDS division, married in a ceremony in New York City on Saturday.

“What a great night w/ [Roberts and Abner],” Lemon tweeted. “Awesome wedding.”

The couple have been together 12 years and announced their engagement via Twitter on June 25, 2011, one day after gay marriage was legalized in New York.

On Sunday, Roberts tweeted, “Morning in NYC is pretty sweet waking up as a married man!” along with a photo of his left hand on a balcony railing, his wedding ring visible.

Celebrities attending the rooftop ceremony held at the Gansevoort Park Avenue Hotel included singer Chely Wright, actress Judith Light, activist David Mixner and writer/commentator Meghan McCain. Former San Francisco Mayor Gavin Newson officiated the wedding ceremony.

Roberts, who came out in 2006, previously told The New York Observer that he does not believe that being the first news anchor to marry a person of the same sex will hurt his career at MSNBC.

“I am not objective when it comes to equality,” said Thomas. “And that means for all. I want it for you, for me, for everybody.”