Nine ground crews of volunteers, several search and rescue dogs, aircraft, drones, boats are being used to find missing five-year-old Frank Young, as Day 4 of the search intensifies.

In its aerial searches, the RCMP are using high-resolution cameras and thermal imaging to aid in the search.

Frank was last seen Tuesday afternoon, playing in his front yard on the Red Earth Cree Nation, wearing a blue windbreaker. RCMP SGT Richard Tonge said the high-resolution camera is focusing on blue objects, as the aerial search has covered approximately five-kilometers from the First Nation.

Volunteer teams from communities all over Saskatchewan are in the community looking for the boy.

The Prince Albert Grand Council is coordinating the water search, as a dive team is looking in a nearby body of water, while boats and canoes comb the shorelines.

There were unconfirmed reports that Frank was spotted at a local playground later Tuesday afternoon, as RCMP explained they searched that and the area around his house.

An Amber Alert has not been issued in the disappearance at this point as RCMP do not suspect abduction.

Anyone with information on the whereabouts of missing Frank Young is asked to contact police.