Fire investigators are looking into the cause of a house fire in San Luis Obispo that displaced five people.

  Firefighters responded to the 4300 block of Vachell Lane just after 7 p.m. Sunday.  When crews arrived on scene, they found a fast-moving fire that had already engulfed a majority of the home.

  No one was injured, but damage is estimated at more than $350,000.

  Fire investigators say the fire broke out in the garage and that the home did not have working smoke detectors.