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FAIRFAX, Va. (WUSA9) -- Gunnar Berg has been missing from Fairfax, Virginia since August 22, 2009.

He was born on September 21, 1999. He has brown hair and brown eyes.

Gunnar's photo is shown age-progressed to 12 years and Kianna's photo is shown age-progressed to 11 years. They were allegedly kidnapped by their mother, Naoko Numakami. A Federal warrant for kidnapping was issued for Naoko on October 15, 2010. They may have traveled to Japan.

If you have any information about Gunnar please call Fairfax County Police at 703-691-2131.

*All info from National Center for Missing & Exploited Children

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