ROHNERT PARK (KRON) — Two girls have been taken in a possible parental abduction in Rohnert Park.  The two girls, aged 11 and 12 went to a YMCA after school program yesterday and were picked up by their dad.  Their mother has a restraining order against the father, who has a history of violence and the girls have no been seen since he picked them up, according to police.

The father obtained documents declaring he had custody of the girls and presented them to YMCA employees.  He then left with the girls, without notifying their mother.

Officers are working on getting an Amber Alert issued to bring the girls home safely.

Police say to look out for a 1998 white Mercedes-Benz with the licence plate 4RIG229.

The three may be heading for Washington state.  If you see them you are urged to call 911.

Stay with KRON 4 as this story develops.