09/05/2013 12:06 pm ET Updated Sep 05, 2013

Braxton Wood, Jayden Thomas Missing: Michigan Teens Disappeared Aug. 26

Two Mount Pleasant, Mich., teens suspected of running away together haven't been seen for more than a week.

"It's like they fell off the face of the earth," Jayden Thomas' mom, Kelly Drinkwine told CBS Detroit. "No one can find them."

Thomas, 13, disappeared with 14-year-old Braxton Wood on the morning of Aug. 26. Officials suspect the teens took off together in a Ford Explorer belonging to Woods' parents, ABC News reports.

Private detective Mike Cook is aiding Isabella County Sheriff's Officers in the search for the missing teens.

"Trying to find these two has been a little bit more difficult than any of us would have thought," Cook said. "They are 13 and 14 years old, boyfriend and girlfriend. It's our impression they have not made contact with anyone."

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Facebook: Missing Teens: Braxton Wood and Jayden Thomas

Before Thomas disappeared, her mother told her that she felt the teens' relationship had grown too serious.

Authorities suspect the pair's friends may be helping them stay hidden.

CBS Detroit has a description of the teens:

Jayden is described as 5 feet, 3 inches tall and weighs about 120 lbs. She has blonde hair and hazel/blue eyes. Braxton is 5 feet 8 inches tall, weighs 125 lbs., and has blonde hair and blue eyes.

Anyone with information on their whereabouts is asked to call the Isabella County Sheriff’s Office at 989-772-5911 or private investigator Cook at 616-466-4274.