A missing 21-year-old woman from Washington is Christopher Caldwellpossibly traveling with a man and his 2-year-old daughter, both of whom police are also searching for.

Nadia Erika Cole, the woman who was last seen leaving an airport in SeaTac, Washington, is possibly traveling with the father of 2-year old Seraya Aung Harmon, according to the Pullman Police Department. Police have issued a arrest warrant for Seraya's father, Aaron Aung of Moscow, Idaho, who faces a charge for first-degree custodial interference.

Surveillance footage last captured Cole on May 29 around 3 p.m. according to a Missing Person alert posted by the Fife Police Department. The alert says the recent Washington State University graduate she has long blonde hair, green eyes and is 5 feet and 9 inches tall.

Police are offering a $1,000 reward for information that leads to Cole's safe return home and are asked to call security services group Shepherd Shield at 877-220-8129.

Child went on a Montana fishing trip with father

Seraya was last seen on with Aung on May 29, according to the Pullman Police Department. The two reportedly traveled to Montana for a fishing trip but the child was not returned to her mother on Monday for their scheduled custody exchange, police said in a news release.

By not appearing Aung, 21, has violated a parenting plan by the Latah County District Court. Police said Aung "may be traveling" with Cole, who was formerly a Pullman resident.

Aung is 5 feet, 9 inches tall, weighs about 135 pounds, and has black hair and brown eyes.

USA TODAY has reached out to Pullman Police Department for further information. Anyone with information on their on Aung's or Seraya's whereabouts is asked to contact the Pullman Police Department or their local law enforcement agency.