VANCOUVER - Today marks the 22nd anniversary of the disappearance of four-year-old Michael Dunahee, but police say they haven't stopped looking.

Dunahee went missing from the school playground at Blanshard Elementary School in Victoria, B.C., sparking one of the biggest investigations in Canadian history.

Media widely reported his disappearance in Canada and the United States, resulting in at least 11,000 tips.

Constable Michael Russell with the Victoria Police Department says the case is still an active investigation.

Over the years, police have released a number of composite sketches to show what the blond-haired, blue-eyed boy might look like as a teen and young adult.

He's asking anyone with information about Dunahee's disappearance to call the Victoria police detachment or Crime Stoppers.