Zimbabwe received its third shipment of COVID-19 vaccine doses on Tuesday procured from the Chinese pharmaceutical company Sinovac.

The delivery of the vaccines comes at a time when the country is scaling up its national vaccination program as it aims to inoculate at least 10 million citizens.

Zimbabwe has so far authorized the use of four COVID-19 vaccines – China’s Sinopharm and Sinovac vaccines, Russia’s Sputnik V and Covaxin from India.

The country launched the first phase of its vaccination drive on Feb. 18 targeting frontline health workers, journalists, prison officers as well as ports and immigration officials.