KALAMAZOO, MI (WKZO) -- Kalamazoo Fire investigators are looking for the cause of a blaze in the 800 block of Clarence St. Saturday night that left a woman and her 5-children homeless. The first firefighters on the scene at 11PM spotted smoke coming from the second story. The occupants were not home at the time of the fire, but arrived home while the firefight was still underway. There were no injuries. The Red Cross is providing temporary shelter assistance.