An unidentified body was found inside a burning porta-potty in St. Augustine Saturday morning.

The St. Johns County Sheriff's Office said the porta-potty was on fire in a residential neighborhood on N. Horseshoe Road off of Lewis Speedway. St. Johns County Fire Rescue discovered the remains after putting out the fire.

The cause of the fire and death is still unknown. The Medical Examiner's Office will be conducting an autopsy on Monday, SJCSO spokesman Chuck Mulligan said.

"Medical Examiner's Office will determine what the cause of death is, Fire Marshall will work to determine what the cause of the fire is, and then we'll determine if this is criminal in nature or not," Mulligan said.

Mulligan said the body was badly burned, so identifying factors like age and gender are unknown.

"It was a very hot fire so it'll take a Medical Examiners Office to determine all of that," he said. "If we have anybody who has a missing person or something — and we don't have any reports at this point in time of any news of a missing person — so we don't know who it could it be."

Anyone with information can call the Major Crimes Unit at (904) 824-8304.

This is a developing story, check back for updates.