Police tell Action News the six-month-old girl and six-year-old boy were taken to a family friend's house in Fresno.
For most of the night electronic signs were activated on our Valley highways.
Officers are still searching for the suspect in the abduction, 21-year-old Marquis Edwards.
He's a six-foot, three-inch tall African-American male, weighing 250 pounds, with black hair, and brown eyes with a tattoo on his right upper arm which reads "Ant Dog".
He was last seen driving a white Buick Century, with a California license plate of 4RKD823.
If you have any information on this case, you are urged to call 9-1-1.