The authorities in Botswana have stopped vaccination in some regions saying doses allocated to them have been depleted.
The country has so far vaccinated 17,808 people, according to data from the health ministry.
People in affected regions have been advised to wait for the next vaccine shipment which is expected to arrive in weeks, ministry said.
Meanwhile President Mokgweetsi Masisi has moved a night curfew to start at 22:00 local time (20:00 GMT) from the earlier start time of 20:00 local time.
Botswana has reported 40,998 Covid-19 cases including 663 deaths.