A townhouse complex known as the L Plex on the Brokenhead First Nation was destroyed by fire Friday night.
The blaze was spotted by a pair of RCMP officers, who helped several occupants out of the complex around 7 p.m. Friday.
The 28 known residents of the complex have all been accounted for, RCMP report. Several were treated for smoke inhalation.
RCMP from the Grand Marais detachment along with area fire departments were on scene.
Thick black smoke drifted west over the South Beach Casino and Highway 59.
The L Plex, which has eight units with one family per unit, is behind Sargeant Tommy Prince School, about a kilometre from the casino.
There is no damage estimate available yet.
The investigation into the cause will continue with the assistance of fire investigators with the Manitoba Office of the Fire Commissioner.