"The analysis of the situation that I receive from experts ... shows that the third wave is coming in our country as well," the head of the Ministry of Health is quoted by Interfax.
In Athens and the suburbs, more than 70% of intensive care wards are occupied by coronavirus patients, he said.
Earlier it was reported that almost 75% of doctors and 50% of medical staff were vaccinated against coronavirus in Greece.
Since the beginning of the pandemic, about 165 thousand cases of the disease have been identified in the country, almost 6 thousand people have died.