Authorities are searching the woods in northern British Columbia for a documentary filmmaker from Ohio.

Warren Sill, 26, was filming a documentary on kermode bears, a group of white-coated black bears that inhabit the area.

Police in New Hazelton, British Columbia, say Sill's vehicle has been parked at the entrance of the Whiskey Creek Trail near Gull Creek since July 5.

Royal Canadian Mounted Police Const. Lesley Smith said Monday that authorities are concerned because Sill is not an avid hiker.

Police say Sill told family and friends he would be exploring the area for four or five days, but that his parents say they haven't spoken to him since July 4.