Alexa Ray Joel, the daughter of pop icon Billy Joel and supermodel Christie Brinkley, was back with her father yesterday after being rushed to a hospital for treatment of an overdose of pills that sources close to the family said was an herbal medication.

Two sources close to the family said yesterday that Alexa Joel, 23, had taken Traumeel, a homeopathic anti-inflammatory often used to treat pain and stiffness. Authorities declined to confirm what medication she had ingested.

PHOTOS: Alexa Ray Joel

PHOTOS: Billy Joel on Long Island

Claire Mercuri, Alexa Joel's publicist, confirmed that she was released from St. Vincent's Hospital Manhattan a few hours after being admitted on Saturday and declined to comment further.

Law enforcement sources had said New York City Police responded to a report of a suicidal female at Alexa Ray Joel's Greenwich Village apartment on Saturday. But yesterday, the NYPD said it was no longer investigating the case, and that criminal charges are unlikely, police said.

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Alexa Joel's release from the hospital came as a relief to residents in Sag Harbor, the East End village where she spent much of her childhood. "She's a very talented singer. . . . I think she's going to be fine," said Jim Turner, a local guitarist, as he walked down Main Street.

Arnold Leo, an East Hampton resident who said he's known Joel's parents for more than 20 years, said, "I'm sure Billy and Christie are very concerned about their daughter, and I'm sure they're doing everything appropriate to be supportive of her."

Billy Joel told Newsday on Saturday night that he was shaken but his daughter was never in any danger because she got to a hospital quickly. Alexa Joel swallowed eight pills, The Associated Press reported.

A source told Newsday on Saturday that Alexa Joel seemed upset over a breakup with her live-in boyfriend, Jimmy Riot, who plays bass in her band. She is a singer, songwriter and pianist who has performed on "Jimmy Kimmel Live" and the "Wendy Williams Show."

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In a July 2009 interview, Alexa Joel said the breakup had left her "struggling with my identity."

Alexa Joel lives in a West Village walk-up, where the buzzer to her apartment says "Joel." Around 11:30 a.m. yesterday, a man climbed the steps and dropped off a yellow bag, then left without talking to reporters.

PHOTOS: Alexa Ray Joel

PHOTOS: Billy Joel on Long Island