Montgomery County Police on Wednesday released photographs of two missing girls whose last known sightings were Jan. 23. Police said they have no reports of either child being abducted, but have grown concerned because it has now been a week since they likely left together.

Police described the two as:

Karina Cornejo-Galdmaez

Karina is described as a Hispanic female, approximately 5 feet tall, and weighing 105 pounds. She has brown eyes, brown shoulder length hair, and has a piercing on the right side of her lower lip. She was last seen wearing a black, North Face jacket, blue jeans, and a black shirt.

Rosa Rivas-Ascencio

“Based on detectives’ investigation,” police added in a statement, “it is believed that the two juveniles are traveling together and may be in the area of Langley Park ...Police and family are concerned for the girls’ welfare because of their ages and because of the length of time they have been away from home.”

Anyone with information about their whereabouts is asked to call 240-773-5400 or 301-279-8000.