Authorities still don't know the name of a woman hit by a train Friday in North Charleston.

And until they learn the woman's identity, they may not be able to answer another pressing question — how she died.

"We really need your help on this," Coroner Rae Wooten said during a news conference Monday in which she appealed to the public for help. "She deserves to be put to rest ... Somewhere, she has family."

Investigators aren't sure whether the woman had died already when an Amtrak employee spotted her lying on the tracks near Gaynor Avenue around 5 a.m.

The southbound train was not able to stop in time to avoid hitting the woman.

Since then, detectives have canvassed the nearby Ferndale neighborhood for clues with little luck, North Charleston police Sgt. Scott Perry said.

Police described the woman as white with a medium build, possibly in her late 20s or early 30s. She was about 5 feet 1 inch tall and 150 pounds.

She was wearing a white shirt, black pants and gold sandals. Her brown hair was styled in braids close to her head. The ends of the braids were secured with rubber bands.

She also had several tattoos, which authorities did not want to describe.

Wooten said the forensic sketch may not be an exact likeness to the woman, so she urged people to call if it bears any likeness to somebody they knew.