A spokeswoman says the pop star fell Saturday afternoon when the horse was startled by paparazzi who "jumped out of the bushes" to photograph her.
Spokeswoman Liz Rosenberg says Madonna was treated at a Southampton hospital and was released. She won't disclose more details on the singer's condition.
Rosenberg says the singer of such pop classics as "Like a Virgin" and "Material Girl" had been visiting friends in the Hamptons, a playground for the rich and famous on the eastern end of Long Island.
Madonna was thrown from a horse in England in the summer of 2005. She cracked three ribs and broke her collarbone and a hand in that accident.
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