Saskatchewan RCMP say they are reviewing a video depicting a confrontation between a member and a group of four young women that at one point turned physical — and which a First Nations vice-chief says shows "very unprofessional" and alarming conduct by the officer.

The video, posted to Facebook Tuesday and believed to have been taken in Pelican Narrows, Sask., runs more than a minute in length.

It shows an RCMP truck parked on a street, with a member standing next to it near a group of young women.