An extensive search on Friday of a sprawling 55-acre site yielded no clues regarding the whereabouts of a Pennsylvania woman who disappeared earlier this month.

According to WTXF, Philadelphia police combed through Awbury Arboretum in the search for 23-year-old Kada Scott, who was last seen on October 4. Deputy Commissioner Frank Vanore noted that the investigation focused on areas with vehicular access, but no evidence was uncovered.

Vanore indicated a belief that Scott’s disappearance was not voluntary, though he did not confirm any suspicions of foul play.

The last sighting of Scott was when she unexpectedly left her night shift at a nursing home early. Her vehicle remained parked at the nursing home.

Philadelphia Police Captain John Craig mentioned that Scott has no history of disappearing, and her colleagues did not observe any unusual behavior prior to her disappearance.

However, Craig also claimed that Scott told her family about someone harassing her over the phone shortly before she vanished. Police said they are unsure who the caller was, but they are investigating.

Scott reportedly left home with her car keys, iPad, iPhone, and iWatch. Her phone has been shut off, so cops cannot track her location.

Scott was described as standing 5 feet, 6 inches tall and weighing about 120 pounds. Anyone with information regarding this case should call Philadelphia police at 215-686-3353.

[Feature Photo: Philadelphia police]