7:00 AM PT -- A spokesperson for USP Coleman II said an assault occurred at the prison on Sunday at approximately 2:35 PM ... though they would not confirm Larry Nassar's involvement -- citing "privacy, safety, and security reasons."
The rep, though, said the incident required "life-saving measures" -- with the alleged victim eventually being transported to a local hospital for further treatment and evaluation.
"The Federal Bureau of Investigation was notified," the spokesperson said. "No staff or other inmates were injured and at no time was the public in danger. An internal investigation is ongoing."
Larry Nassarwas reportedly stabbed multiple times while in prison over the weekend ... after he was involved in an altercation with another inmate.
The attack, according to the Associated Press, happened inside Florida's United States Penitentiary Coleman on Sunday.
The outlet reports the 59-year-old disgraced sports doc suffered wounds to his back and his chest ... though as of Monday, he was in stable condition. No further details surrounding the incident were released.
Nassar has been involved in at least one conflict with a fellow inmate before ... back in 2018, his attorney said he was assaulted just hours after he was released into general population at the United States Penitentiary in Tucson, AZ.