The OPP is looking for help from the public as it revisits a 51-year-old cold case.

In September 1966, two-year-old Diane Prevost went missing while camping with her family at Grundy Lake Park just north of Britt. Police say she was playing in the sand while her father was fishing on a nearby dock when she disappeared. A month-long investigation of the lake and park turned up no evidence according to police.

The OPP is asking the public to share a video on Prevost’s disappearance with the hope of finding new details to revive the investigation. You can watch the video below and find more details on this investigation here.