Source: Jared Fogle expected to plead guilty to child pornography charges

ZIONSVILLE, Ind. -- Jared Fogle is expected to plead guilty to charges related to child pornography, a source with knowledge of the situation confirmed with ABC News. FBI agents raided the home of the former Subway spokesman's home in July.

FBI agents were seen leaving Fogle's with several boxes in the July 7 raid.

Subway suspended its relationship with Fogle after learning of the investigation.

"Subway and Jared Fogle have mutually agreed to suspend their relationship due to the current investigation," the sandwich chain said in a statement at the time. "Jared continues to cooperate with authorities and he expects no actions to be forthcoming...Both Jared and Subway agree that this was the appropriate step to take."

The investigation into Fogle may have been an offshoot of an FBI investigation into Russ Taylor, the leader of Fogle's child obesity foundation. Taylor was arrested in May on charges that he produced and possessed child pornography.

ABC11's sister station in Chicago reported in July that a former Florida journalist told ABC in Sarasota that she met called the FBI and wore a wire to record phone conversations with Fogle after he made numerous inappropriate comments about middle school girls during promotional visits.

"That's exactly what started this," the woman, who asked not to be identified, said. "When I presented it to the FBI the first thing they said to me is, 'This who I think it is?' I said, 'Yes, it is.' And it just went in full gear after that."

Fogle's attorney told ABC in Sarasota that the woman's account was an "unrealistic fabrication."