An AMBER Alert is active after 3-month-old Maxence Sirois was taken by his mother, Marina Kazakova, who failed to return the child under a court-ordered custody agreement issued days earlier.Kazkova is believed to be driving a white 2016 Mazda CX-5 with California plate 7SJW989 and was last seen near McBride Lane and Underwood Avenue in Hayward; the vehicle was later tracked in Kern County while authorities searched Alameda, San Joaquin and Los Angeles counties.Police urge the public not to approach Kazakova, to call 911 immediately with tips and to report information to
Hayward police referencing the department case number.