A Sunday morning blaze on Swan Avenue damaged two homes and engulfed 4 vehicles, no injuries were reported. But fire investigators are still searching for a cause in the fire that investigators call suspicious. Firefighters arrived at about 7:30 yesterday morning in the 12 hundred block of Swan Avenue. Damage is pegged at 150 thousand dollars.  The cause is under investigation. The fire started in a carport and spread to one home and then to another. No injuries were reported.