Early Monday morning, an Amber Alert was issued for the children. Authorities suspected that 6-year-old Natalya Litwin and 2-year-old Katelyn Litwin were abducted by their father, 34-year-old Stephen Litwin.
Los Angeles sheriff's detectives said Litwin took the girls from their home on Sunday and traveled with them to Utah. He heard about the Amber Alert through the media and contacted local law enforcement.
Sheriff's officials are waiting to interview him and said they were continuing their investigation.