An Amber Alert was issued in Yolo and Sacramento counties for three children who were abducted Saturday by their biological father.
The father has a history of domestic violence and methamphetamine use, according to law enforcement.
The Gerasimov children -- ages 7, 4, and 2 -- were taken from 630 Cummins Way in West Sacramento. Vitaliy, 7, has brown hair and hazel eyes.
He is 4 feet 11 inches tall and weighs about 130 pounds. Valeriy, 2, has brown hair and brown eyes. He weighs about 30 pounds and is about 3 feet tall. Alisa, 4, has brown hair and brown eyes. She is about 3 feet 3 inches tall and weighs 55 pounds.
They are believed to be with Dmitriy Gerasimov, 30, who has brown hair, brown eyes, stands about 5 feet 11 inches tall, and weighs about 146 pounds.
They may be traveling in a black Mercedes-Benz 300SE with a California license plate No. 6THU701. Anyone with information is asked to call (916) 375-6474.