Luann de Lesseps poses with 'Real Housewives' cast in first photo since leaving rehab

Luann de Lesseps reunites with her Real Housewives of New York City squad!

The 52-year-old reality star recently left an alcohol treatment center, which she checked herself into after she was arrested in Palm Beach, Florida, on Christmas Eve for allegations of disorderly intoxication, resisting arrest and battery on a law enforcement officer. She pleaded not guilty.

On Monday night, Ramona Singer shared a photo on Instagram of her and de Lesseps seated at a table with their Real Housewives castmates, including Sonja Morgan, Bethenny Frankel, Tinsley Mortimer, Dorinda Medley and Carole Radziwill.

"The gang's all here," Singer captioned the photo, which was later deleted.

Real Housewives of New York City
Instagram

Meanwhile, Morgan and Radziwill posted pics of the cast posing for fake mugshots, though de Lesseps was noticeably missing from the photo shoot. "#RHONY outlaws," Morgan cleverly captioned the post.

#RHONY outlaws

A post shared by Sonja Morgan (@sonjatmorgan) on

Just prior to entering a treatment facility, de Lesseps issued several apologies in regard to her arrest. 

"After the events of last Saturday night in Palm Beach, I am truly embarrassed. I have decided to seek professional guidance and will be voluntarily checking into an alcohol treatment center," she shared on Dec. 29 in a Facebook post. "I intend to turn this unfortunate incident into a positive life changing event."

She concluded, "I am committed to a transformative and hopeful 2018."

As ET previously reported, de Lesseps -- who divorced Tom D'Agostino in September -- was taken into custody at 1:25 a.m. local time and was released on her own recognizance from the jail 10 hours later. An assistant state's attorney told the Palm Beach Post that ahead of the arrest, she slammed a door, kicked at least one officer and said, "I'm going to kill you all."

See more photos of Luann de Lesseps:

23 PHOTOS
Luann de Lesseps out and about
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Luann de Lesseps out and about
PALM BEACH, FL - DECEMBER 24: (EDITOR'S NOTE: Best quality available) In this handout provided by the Palm Beach County Sheriff's Office, Reality TV Personality Luann de Lesseps poses for her booking photo after being charged with battery of an officer, public intoxication, resisting an officer and threatening a public servant on December 24, 2017 in Palm Beach, Florida. de Lesseps was released and is set to return to court on January 25, 2018. (Photo by Palm Beach County Sheriff's Office via Getty Images)
NEW YORK, NY - DECEMBER 14: Luann De Lesseps and Kim Heirston Evans attend A Christmas Cheer Holiday Party 2017 Hosted by George Farias, Anne and Jay McInerney at The Doubles Club on December 14, 2017 in New York City. (Photo by Patrick McMullan/Patrick McMullan via Getty Images)
NEW YORK, NY - DECEMBER 06: Luann De Lesseps attends DailyMail.com & DailyMailTV Holiday Party with Flo Rida on December 6, 2017 at The Magic Hour in New York City. (Photo by Slaven Vlasic/Getty Images for Daily Mail)
NEW YORK, NY - NOVEMBER 29: TV personality Luann de Lesseps attends the 'Meteor Shower' Broadway opening night at the Booth Theatre on November 29, 2017 in New York City. (Photo by Jim Spellman/WireImage)
CORAL GABLES, FL - OCTOBER 4: Luann de Lesseps at the American Red Cross South Florida Spectrum Awards kick off reception at Lilly Pulitzer Boutique at Merrick Park on October 4, 2017 in Coral Gables, Florida. (Photo by Manny Hernandez / Getty Images)
NEW YORK, NY - SEPTEMBER 07: Luann De Lesseps attends Fashion Does Drag Ball at The McKittrick Hotel on September 7, 2017 in New York City. (Photo by Michael Ostuni/Patrick McMullan via Getty Images)
BRIDGEHAMPTON, NY - SEPTEMBER 03: Luann de Lesseps attends the 2017 Hampton Classic Horse Show Grand Prix competition on September 3, 2017 in Bridgehampton, New York. (Photo by Sonia Moskowitz/Getty Images)
SOUTHAMPTON, NY - JULY 29: (L-R) LuAnn de Lesseps, Kelly Killoren Bensimon and Gizelle Bryant attend the Jill Zarin's 5th Annual Luxury Luncheon on July 29, 2017 in Southampton, New York. (Photo by Johnny Nunez/WireImage)
WATERMILL, NY - JULY 29: Luann DeLesseps D'Agostino attends the 20th Annual Super Saturday to benefit the Ovarian Cancer Research Fund Alliance at Nova's Ark Project on July 29, 2017 in Watermill, New Yor (Photo by Sonia Moskowitz/WireImage)
WATER MILL, NY - JULY 28: Tom D'Agostino Jr. and Luann de Lesseps attend Alzheimer's Association Hosts Rita Hayworth Gala Hamptons Kickoff Event at Private Residence on July 28, 2017 in Water Mill, New York. (Photo by Patrick McMullan/Patrick McMullan via Getty Images)
NEW YORK, NY - JULY 18: LuAnn de Lesseps are seen in Soho on July 18, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - APRIL 05: Jeff Lewis (L) and Luann de Lesseps attend 'The Real Housewives Of New York City' Season 9 Premiere Party at The Attic Rooftop Lounge on April 5, 2017 in New York City. (Photo by Johnny Nunez/WireImage)
NEW YORK, NY - APRIL 04: Candace Bushnell, Luann de Lesseps and Patricia Hearst Shaw attend Verdura Celebrates the Hearst Castle Preservation Foundation at Verdura Showroom on April 4, 2017 in New York City. (Photo by Patrick McMullan/Patrick McMullan via Getty Images)
NEW YORK, NY - APRIL 03: Luann de Lesseps and Tom D�Agostin attend the 2017 Tribeca Ball at the New York Academy of Art on April 3, 2017 in New York City. (Photo by Mike Coppola/Getty Images)
NEW YORK, NY - APRIL 03: LuAnn de Lesseps attends the New York Academy of Art Tribeca Ball Honoring Will Cotton at New York Academy of Art on April 3, 2017 in New York City. (Photo by Sean Zanni/Patrick McMullan via Getty Images)
NEW YORK, NY - MARCH 09: Tv Personality Luann de Lesseps and Nicole Nadeau attend the MTV RE:DEFINE 2017 - Parivate Preview And Auction Launch at Great Jones Studio on March 9, 2017 in New York City. (Photo by Nicholas Hunt/Getty Images)
NEW YORK, NY - FEBRUARY 10: Tom D�Agostino Jr. and Luann de Lesseps attend the Nicole Miller collection Front Row during, New York Fashion Week: The Shows at Gallery 2, Skylight Clarkson Sq on February 10, 2017 in New York City. (Photo by Astrid Stawiarz/Getty Images For New York Fashion Week: The Shows)
NEW YORK, NY - FEBRUARY 10: Luann de Lesseps attends the Nicole Miller Fall 2017 After Party on February 10, 2017 in New York City. (Photo by Patrick McMullan/Patrick McMullan via Getty Images)
NEW YORK, NY - FEBRUARY 09: Tom D'Agostino and wife Luann de Lesseps pose at the Opening Night of 'Sunset Boulevard'on Broadway at The Palace Theatre on February 9, 2017 in New York City. (Photo by Bruce Glikas/FilmMagic)
NEW YORK, NY - FEBRUARY 10: Luann de Lesseps attends the Nicole Miller collection Front Row during, New York Fashion Week: The Shows at Gallery 2, Skylight Clarkson Sq on February 10, 2017 in New York City. (Photo by Astrid Stawiarz/Getty Images For New York Fashion Week: The Shows)
NEW YORK, NY - OCTOBER 17: (EXCLUSIVE COVERAGE) TV personality Luann de Lesseps visits the SiriusXM Studios on October 17, 2016 in New York City. (Photo by Astrid Stawiarz/Getty Images)
NEW YORK, NY - OCTOBER 13: Reality star Luann De Lesseps attends Build Series to discuss 'Does This Make My Butt Look Big?' at AOL HQ on October 13, 2016 in New York City. (Photo by Steve Zak Photography/FilmMagic)
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