Troubling information about kidnapped jogger Sherri Papini has been released.

Days on from being discovered bound and heavily battered on the side of the road, police say they have “no reason to disbelieve” the story of Sherri Papini, the California mother who went missing for 22 days earlier this month.

“We currently have no reason to disbelieve Sherri Papini’s story,” Shasta County Sheriff Tom Bosenko told the media on Sunday, adding, “She was assaulted and had injuries which she was treated for.”

34-year-old Papini was reported missing after she failed to return from a run on November 2.

22 days later, the mother-of-two was spotted by motorists on the side of a rural road in California at 4.30am, where she was attempting to flag down cars after being dumped by her captor or captors.

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Sherri Papini has been reunited with her family after 22 days. Image:

A 25-minute-long audio recording of police responding to calls from concerned motorists has also been released and includes conversations between multiple safety dispatchers and police.

“CHP is advising she is heavily battered,” one dispatcher says during the call obtained by the Redding Record Searchlight.

Papini was immediately rushed to a nearby hospital and treated for non-life-threatening injuries, where she was reunited with her husband Keith and their children.

“It’s been a range of emotions: sadness, anger. Right now it’s joy." Papini's sister, Sheila Koester told the media following her sister's recovery.

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Shasta County Sheriff Tom Bosenko. Source: ABC News.

“We are overwhelmed with joy of how supportive everyone has been to help bring us together as a family again.

“We are very, very thankful and very ecstatic. It’s the best Thanksgiving that anyone could ask for.”

Papini has since been released from hospital and is now back at home with her family.

Bosenko says that now the search for Papini's kidnappers is on, with police currently focusing their efforts on two Hispanic women who were last seen driving a dark SUV. They are believed to be armed with a handgun.

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Sherri Papini with husband Keith, who was ruled out as a suspect almost immediately. Source: ABC News.

Police have also filed approximately 20 search warrants in a bid to obtain surveillance footage and mobile phone data that may help in the investigation.

Speaking to Good Morning America following her discovery, Bosenko said, “Obviously she was emotional and quite upset but elated to be freed, and so we were able to get some information from her.

“Then, in the days following this, we will be following up with her," Bosenko continued.

"Detectives will not rest until her captor or captors are identified and brought to justice. This investigation is far from over."