He said "ground forces will remain in the field throughout the night".
Since Sunday midday, the authorities have called for the evacuation of at least eight areas near the capital, with flames destroying cars and houses.
Ert channel reported that a 45-year-old-man died from a
cardiac arrest while trying to flee fires in suburban Athens.
According to the police, the man was found unconscious in the yard of a house in Rodopoli and taken to hospital where he died.
"Today is the hardest that the Fire Brigade has faced in this year's firefighting season,"
fire department spokesperson Vasilis Vathrakogiannis said on Sunday afternoon, during an emergency press briefing.