WOODSTOCK, Ont. — Investigators on the case of Victoria Stafford's abduction and killing will be searching along the busy Highway 401 Monday.

The eight-year-old girl disappeared in Woodstock, Ont., on April 8 and two weeks ago two people were arrested.

Both Michael Rafferty, 28, and Terri-Lynne McClintic, 18, are charged with first-degree murder and kidnapping.

Police have been involved in an ever-expanding search for Victoria's remains since May 20.

Officers will spend Monday searching along the westbound shoulder of Highway 401 between Cambridge, Ont., and Woodstock.

Though her body has not yet been found a memorial service for Victoria will be held Saturday in Woodstock at 1 p.m.