UPDATE: Aliya Payton has been located as of Thursday, according to D.C. Police.

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D.C. Police are asking for the public's help to locate a missing 1-year-old girl who was last seen with a woman in Southeast D.C. on May 18.

Police said Aliya Payton,1, was last seen in the 3200 block of Buena Vista Terrace and is believed to be with 20-year-old Diane Terrell.

Aliya is described as a black girl, 2'0" tall, 27 pounds with black hair and brown eyes. Police said she was last seen wearing a white onesie and pink shorts.

Aliya was officially reported missing on Wednesday-- nearly a week after she was last seen.

The police department told 7News that Terrell was an "acquaintance of the mother." They said they are unable to explain the delayed reporting of the child's disappearance.

The case is being investigated by D.C. Police's Youth and Family Services Division. Anyone with information about this case is asked to call detectives at 202-727-9099 or Text 50411.

This story is developing. Stay with 7News for the latest updates.