Police officers continued search for clues in the rural home north of Calgary in the mysterious disappearance of 5-year-old Nathan O'Brien and his grandparents, Alvin and Kathryn Liknes.
The couple and the 5-year-old were last seen 11 days ago following which an Amber Alert was issued.
Paramedics were present for the assistance of any officers that may find themselves suffering from heat in the landfill search.
A candlelight vigil has been organized Thursday evening where the local community will gather for prayers of the well-being of the couple and Nathan.
