A personal trainer in South Carolina has vanished without a trace after leaving the gym and was caught on surveillance video walking toward a wooded area.

Elena Katherine Moore, 39, was last seen leaving Planet Fitness in Lexington — about 14 miles outside of Columbia — and walking toward a wooded area behind a nearby Lowe’s Home Improvement store on Thursday at 9:17 p.m., the Lexington Police Department said.

Investigators revealed Moore had signed in at Planet Fitness around 6:40 p.m. and was last seen on surveillance footage wearing the same outfit she had on at the gym, an olive-green zip-up hoodie and black athletic pants.

Her husband, Brannon Slice, reported her missing the following day.

Police confirmed Moore was a regular at the Planet Fitness where she was last seen and described her sudden disappearance to ABC News as “very out of character.”

Investigators deployed a drone and searched the area where Moore was last seen on Friday but found no sign of her.

Lexington police joined multiple local and state agencies in a more extensive search of the wooded areas Moore was last seen heading toward on Monday, but “no trace of Ms. Moore was found during the operation.”

Law enforcement stressed the search was not a recovery effort, but an attempt to eliminate one possible location where Moore could be.

On Tuesday, police released new photographs of Moore — including images captured on a front door camera a week before her disappearance — hoping someone recognizes her and remembers a recent encounter.

Authorities said Moore had a phone with her at one point, but it’s unclear if she still has it.

“Investigators are attempting to track it, but cell phone carriers often take time responding to search warrants,” the Lexington Police Department told USA Today.

Moore is a personal trainer at Wolf’s Fitness Center and works as a pharmacy technician at CVS, police added.

She is described by police as 5 feet 7 inches tall and 120 pounds, with brown hair and brown eyes.

Lauren Beasley, a friend of Moore’s, told Fox News she last spoke with her about a month ago and that Moore appeared to be her normal self during their conversation.

“She did not say anything personal about anything she was going through. She got married last year, but she didn’t say anything about her relationship or work or anything personal,” Beasley said.

However, Beasley mentioned that Moore stopped posting on social media about a month before she went missing, which she said was unusual.

“She is very active on social media so her going radio silent for the last month is out of character,” Beasley told the outlet.

Moore’s last Instagram post was made on April 23 and her last Facebook post on April 15.

According to Fox News, Moore’s husband wrote in a comment on a since-deleted Facebook post that his wife is “not well.”

Police said Monday they do not suspect foul play in Moore’s disappearance and do not believe she is in imminent danger, WIS News 10 reported.

Law enforcement is asking anyone with information about Moore’s whereabouts to contact detectives at 803-358-7271 or Midlands Crimestoppers.