AUSTIN, Texas — UPDATE [Dec. 27] — Four-year-old Marsdan Harp has been located and returned safely to his father after a regional AMBER alert was issued on Thursday when his non-custodial mother took him and refused to return him home.

ORIGINAL [Dec. 26] — A regional AMBER Alert has been issued for a four-year-old Austin boy who was abducted by his mother earlier today.

The Tarrant County Sheriff's Office issued the regional AMBER Alert for 4-year-old Marsdan Ellis Harp who was abducted from 9611 Dawning Court around 2 p.m. earlier today by his mother, Celina Jeanne Harp.

Harp was last seen traveling south on Mopac at FM 2244 in a dark green Ford Fusion bearing Texas license plate No. LGV-3638.

Marsdan Ellis Harp was last seen wearing a black t-shirt and black shorts. He’s 3ft, 9in tall and weighs 42 lbs. He has brown hair and brown eyes.

A regional AMBER alert, according to the Tarrant County Sheriff's Office, will not activate alerts on cell phones, nor will it appear on road signs. A regional alert is issued when it is believed the child and his abductor are still in this are, stated the department.

Anyone with information is asked to call 911.