A third body has been removed from the farmland of an alleged serial killer close to where a woman was found chained "like a dog" in South Carolina, police say.
The FBI and Homeland Security have joined the investigation into accused killer Todd Christopher Kohlhepp after he recently confessed to killing seven people.
The most recent human remains were unearthed from a shallow grave on Monday US time, CBS reported.
Kohlhepp also led investigators to another two grave sites on his Woodruff property over the past week.
All three graves were in close proximity of each other.
Coroners have not yet determined the gender or age of the victims, or how long they were deceased or buried, police said.
Spartanburg County Coroner Rusty Clevenger said he will rely on examinations to determine how the people were killed and would not go into details of their state of decomposition.
County spokesman Lt. Kevin Bobo said: "At this time we don’t feel like there are any more bodies on this property."
The revelation comes as Mail Online found Kohlhepp had posted an eerie photo on Facebook of a woman walking through his farmland, which has lead to investigators questioning if she could be another victim.
The blonde woman in the image was wearing a purple dress and appeared to have been photographed without her knowledge as she walked through the long grass.
His Facebook page has since been taken down.
The discoveries are the latest twist in the dizzying case against the 45-year-old who stands accused of kidnapping Kala Brown, who went missing in August with her boyfriend Charles Carver, 32.
Ms Brown was rescued after being chained "like a dog" for two months inside a storage container on Kohlhepp’s 95-acre property.
The following day police discovered a body, which has since been identified as her boyfriend Mr Carver.
A coroner's report concluded he died of multiple gunshot wounds.
Ms Brown's rescue on Thursday led to the break in a 13-year-old cold case bike shop slaying.
Business owner Scott Ponder, 30, his mother, Beverly Guy, 52, and mechanic Chris Sherbert, 26, were fatally shot inside the the Superbike Motorsports motorcycle shop in Chesnee on November 6, 2003.
Kohlhepp, who is a real estate broker, pilot and convicted sex offender, confessed to the bike shop slaying and has been charged with four counts of murder.
As a teenager, he was convicted of raping a 14-year-old neighbor at gunpoint and threatening to kill her siblings if she called police.
He was released from prison in Arizona in 2001.
Scott Waldrop, who has lived next door to the Woodruff property for nearly 22 years, said he thought Kohlhepp was a "serious Doomsday prepper" who liked his privacy, but "he didn't seem like a threat".
Waldrop said Kohlhepp paid him to put "no trespassing" signs, cut trees and do other odd jobs around the property. Kohlhepp also installed deer cameras and put bear traps throughout.
"I just hate to know somebody who's done something like this," he said.