More than 100 volunteers, Calgary police continue search for missing autistic 11-year-old boy

More than 100 trained volunteers joined Calgary police on Sunday as the search continued for Parker, an 11-year-old autistic boy who is non-verbal and has been missing since Thursday afternoon.

According to the Calgary Police Service, approximately 120 trained volunteers are assisting officers, including police dog teams and bike patrols, in search efforts across areas connected to Parker's last known movements and reported sightings. Police are also playing his favourite Disney songs from patrol vehicles in the hope the familiar music may encourage him to respond.

Parker was last seen Thursday afternoon at a home in Calgary's north end. Police have said foul play is not considered a factor in the investigation. He was last seen shirtless, wearing grey shorts and black noise-cancelling headphones.

An Amber Alert was issued Saturday afternoon, and investigators said they have received about 90 tips from the public. Police said hundreds of officers have canvassed neighbourhoods, knocked on doors and continue reviewing hours of surveillance video as the search remains active.

Authorities are asking anyone who sees Parker not to approach him because he may become frightened by strangers. Instead, they are urged to call 911 immediately. The Calgary Police Service said the investigation remains ongoing and search efforts continue to be guided by verified sightings and investigative leads.