In October, officials discovered eight cremation urns in a single grave site that was marked with headstone that read, "Unknown," The Washington Post reported Saturday.
Army spokesman Gary Tallman also confirmed reports that at least one of the urns had been dug up on 2002 and was later discovered in a landfill, before being returned to the cemetery.
"Clearly, this discovery of eight separate remains under an 'Unknown' marker raised suspicions," Tallman said.
Officials said two more sets for remains had been discovered at the landfill, The Post reported. In addition, a cemetery worker said one of those remains included a photograph of a girl wearing a cheerleader's outfit.
A contracted worker discovered the remains at the dump site in 2005, the newspaper said.