Last Update: 09:39
A fire brigade official told Reuters that no injuries had been reported but at least a dozen houses were heavily damaged.
"It was a terrible mess, that´s what it was. You could see homes on fire, people running, people desperate, it was chaos and the fire was very big," a resident of Kalamos village told Reuters TV.
Television footage showed hundreds of residents fleeing from the area and heading to the beach to spend the night.
Greek authorities ordered a precautionary evacuation of two youth camps in the area.