Earlier, rescue workers searching a cliffside in the seaside town of Mati found more human remains.
A large number of the victims were caught close to the cliff as the flames spread rapidly, whipped up by winds as high as 75mph. Many of the survivors were saved by the sea, but dozens of victims were unable to reach the water.
Nikos Toskas also said that another fire that broke out near Athens a few hours earlier but did not cause casualties had been started intentionally.
The minister added that “climate conditions” in the areas affected by fire were “extreme due to climate change”.