Ground crews searching for Casey Crowder found a body Saturday afternoon but can’t confirm that it is the body of the missing 17-year-old Pine Bluff girl.

“We do have a body but we don’t have positive ID,” said Desha County Sheriff-elect Jim Snyder. “It may be another day or two before we have positive ID.”

Snyder said a National Guard ground crew and local volunteers found what police believe to be a female body in eastern Desha County, off a rural road. The body was found at 3:30 p.m.

Snyder said police don’t yet know the cause of death. The body has been sent for the state Crime Laboratory for autopsy.

“We have been in search mode, now the investigation has just begun,” Snyder said.

Crowder reportedly disappeared on August 27, after running out of gas on U.S. 65 just inside the Dumas city limits. Her abandoned vehicle was found on the highway, within walking distance of a gas station. The gas tank was empty, according to police.

Police said Crowder phoned her mother at 5:47 a.m. after leaving her boyfriend’s home at Pickens to tell her she was on her way home. She reportedly placed a second call to her mother at 6:08 a.m., telling her that she had run out of gas and she would call a friend to help her.

Synder said police are asking anyone who may have seen the girl on U.S. 65 between 5 a.m. and 7 a.m. to call 888-688-8549.