TEHRAN, Young Journalists Club (YJC) - The 70-year-old was released early on Sunday from the prison where he had been held since 2008 for a botched armed robbery at a Las Vegas hotel, the Associated Press reported.
Simpson was approved for early parole release at a board hearing in July. He participated in the proceedings by live video feed from Lovelock Correctional Center, about 100 miles (161 km) from the parole board's office in Carson City.
A Nevada prison official confirmed Simpson's release to AP. He left prison shortly after midnight local time.
The Nevada Department of Corrections released an image and video of Simpson on Facebook, signing documents and leaving Lovelock Correctional Center early on Sunday.
No further details on Simpson's whereabouts or destination are known yet.
After he was granted parole from prison on July 20, Simpson bowed his head and shed tears of joy. He then stood and clasped his hands as he thanked the four-member board repeatedly.
"I've done my time, I've done it as well and respectfully as anyone can," Simpson said during his testimony. "None of this would have happened if I'd had better judgment."
During the often emotional hearing, board members also heard testimony from Simpson's adult daughter, Arnelle, and from Bruce Fromong, one of two sports memorabilia dealers he was convicted of robbing at gunpoint on September 13, 2007.
In 1995, Simpson was acquitted of the murder of his former wife Nicole Brown Simpson and her friend Ron Goodman in a sensational double-murder trial that had gripped America.