An autopsy will be done in Saskatoon this week after a body was found following a fire on the Big River First Nation.

The blaze in a house trailer was reported around 11:45 p.m. Friday evening.

When fire fighters arrived, the structure was fully engulfed in flames. The remains of an adult were later found inside the trailer.

Police are working to establish the identity of the victim.

(PHOTO: RCMP. File photo.)