The search for a missing Texas teen has been extended to Mexico — five days after she vanished from her home on Christmas Eve.

A missing person report for Camila Mendoza Olmos, 19, was issued by the Nuevo León Attorney General’s Office, as state authorities fear she may have been taken over the US-Mexico border.

“Camila Mendoza is Mexican, with light brown wavy hair, fair skin, light brown eyes, straight nose and large mouth; she is 1.63 meters [5 feet 4 inches] tall and of slim build. The day of her disappearance she was wearing a black hooded sweatshirt, black leggings and white tennis shoes,” the statement from the office reads.

The teenager was last seen just before 7 a.m. Dec. 24 in Bexar County, near San Antonio, Texas, as she left her home and went to her car, parked in front of the house.

In the security video, Olmos, a Mexican national, is seen searching for something inside the vehicle, before closing the door and disappearing.

She only had her car keys and driver’s license with her, but not her cellphone, which was found on her bed, family members told the police.

It is believed that she left on foot.

Since then, there have been no leads on Olmos’ whereabouts, with local police collaborating with both the FBI and the Department of Homeland Security (DHS) to find whether she crossed the border.

The sheriff has not ruled out kidnapping, human trafficking, or Olmos leaving of her own accord.

The teenager had recently ended a romantic relationship, according to the Bexar County Sheriff’s Department.

However, the breakup was described as amicable and police are not working on the assumption that her ex is involved in her disappearance.

“We definitely don’t want to miss anything. The ground search is somewhat limited to a couple of square miles. We’re also not ruling out that this case may take us outside the borders of the continental United States,” Bexar County Sheriff Javier Salazar told ABC News.

Earlier, authorities ruled out the possibility that Olmos was being held by Immigration and Customs Enforcement, Salazar said.

“That was a personal concern. So I had it checked to make sure that there were no stops, no detentions, and that she’s not somewhere in a federal detention facility. That is something we needed to check,” Salazar said.

More than 100 volunteers, including family and friends, helped lead the search for Olmos around her home, using tracking dogs and organized search parties within a radius of several miles around the area where she was last seen in northwest Bexar County.