The first batch of 9,750 anti-coronavirus vaccines arrived at a storage facility in Athens early Saturday morning.
The batch arrived overland; it crossed the border with Bulgaria Friday evening.
These vaccines have been developed by Pfizer-BioΝTech.
The vaccines are stored in special deep-freeze containers, at temperatures between -70 to -80 Celsius.
The Ministry of Defense will deliver vaccines to isolated areas on the mainland and in the islands.
The first vaccinations will thake place Sunday.