Investigators are working to determine the cause of a house fire in Savannah. Savannah Fire was dispatched to the 2000 block of East 36th Street shortly before 10:30 Wednesday morning. They found smoke streaming from a home and extinguished several small fires inside. Savannah Fire Arson Unit investigators were spotted going in and out of the house hours later. No one was home at the time of the fire. The cause is under investigation.