UPDATE: AMBER ALERT CANCELLED! The three children have been safely located and both parents arrested.

ROANOKE COUNTY, Va. – An Amber Alert has been issued for three small children who were last seen in Roanoke County.

Virginia State Police and the Virginia Missing Children Clearinghouse say the three were kidnapped Tuesday and are believed to be in “extreme danger.”

It’s believed the children were abducted by John Varion Allison, a white male with blonde hair, standing 5’ 9” and weighing 185 pounds. He is in the company of his wife, Ruby Marie Allison.

The children, Cameron, Emma and Colin Allison, range in age from 21 months to six years.

State police say the couple is driving a 1999 maroon Chevy Suburban SUV with Virginia tags VVU-3796, or a 2006 maroon Cadillac with Virginia license VMN-8238.

Anyone with information is asked to call 911.