Cpl. Richard De Jong says the victim was hiking up the B.C. Mountaineering Club trail late Tuesday afternoon when he met an unknown male at the halfway mark.
De Jong says there was an unprovoked altercation between the two males, and the victim was stabbed in the abdomen.
UPDATE: The Grind is now officially back open, News1130 reports, but police are continuing to investigate the stabbing.
He says the suspect fled, and the victim struggled down the mountain where he was met by hikers who called emergency services.
De Jong says the victim was taken to Lions Gate Hospital where he is being treated for what appears to be non-life-threatening injuries.
Emergency-response members, police dogs and officers from the North Vancouver detachment have secured the area, and De Jong says they are looking for other potential victims.
Also on HuffPost