Greek Defence Minister Panos Kammenos told the BBC that illegal construction has contributed to one of the country's worst-ever wildfire disasters.
He said building by residents between wooded areas was a "crime" that had resulted in blocking escape routes.
Mr Kammenos was confronted by angry locals as he visited areas devastated by fires east of Athens this week.
At least 81 people died and search teams fear they will find further victims as dozens more are missing.
Arriving in the fire zone in the town of Mati on Thursday, Mr Kammenos was surrounded by residents who accused him of abandoning them.
"You left us alone," one person told the minister, who was accompanied by the local mayor and the head of the air force.
One man told the BBC he had reached the fire station to ask for help, and found firefighters unaware of the blaze.













