CHICAGO (CBS) — Police on Thursday evening were looking for two young girls who they say were abducted by their biological father nearly a month ago.

Yakira Ali, 2, and Yahaira Ali, 4, were last seen on June 26 by their biological mother.

READ MORE: Delivery Driver Shot In Head In Back of The Yards; 18-Year-Old Struck In Thigh

They were last in the care of their biological father in the 6100 block of South Woodlawn Avenue, police said.

Yakira stands 3 feet tall and weighs 26 pounds.

READ MORE: Toys For Tots Motorcycle Parade Delivers Presents For Children

Yakira Ali

Yakira Ali (Credit: Chicago Police)

Yahaira sands 4 feet tall and weighs 40 pounds.

Yahaira Ali

Yahaira Ali (Credit: Chicago Police)

MORE NEWS: Chicago Weather: Monday Brings Wind, Blast Of Cold Air

Anyone with information on their whereabouts is asked to call Area One Special Victims detectives at (312) 747-8380, or 911.

CBS 2 Chicago Staff