BUTLER CO., Pa. (EYT) – Butler-based State Police are continuing their investigation into the death of a Callensburg woman whose body was dumped in Butler County.

According to a published article on ButlerEagle.com, police believe 28-year-old Kayla A. Dunlap was alive when she was dumped near a road behind the Oneida Valley Dam.

Dunlap, who has a history of drug offenses, was found by a couple walking their dog on the road on Sunday morning. Police believe she died where she was dumped.

Police are investigating Dunlap’s death as suspicious. They are trying to establish what happened in Dunlap’s final hours, and they also want to find out who dumped her body.

An autopsy did not determine a cause of death, and police are waiting on toxicology results, which could take several weeks.

Police have spoken to Dunlap’s four roommates as part of the investigation.

The Pa. State Police Clandestine Lab Response Team was at the victim’s home on Monday and collected materials used in the operation of a meth lab.

Police also found a clump of hair that appeared to match the hair on Dunlap’s head, an anonymous source told exploreClarion.com.

In addition, police have talked to Dunlap’s father and grandmother who live in Emlenton.

No charges have been filed, and no one is in custody, according to police.

At the time of her death, Dunlap was wanted on a bench warrant for leaving a drug rehabilitation center in Clarion County.

Police say Dunlap had fresh wounds on her face, including bruises around the left eye. It is uncertain if the injuries occurred when she was thrown from a vehicle at the dam site or in an assault.

Dunlap was wearing a pink tank top under a white t-shirt and jean shorts. She was barefoot.

Police found Dunlap’s purse about 300 yards from where she was found.

Police also found tire marks leading up to the edge of the hillside where she was dumped.