The National Emergency Operation Centre said the patients were part of the 170 passengers that arrived in the country on 6 March repatriation flight from New Zealand.
The cases are managed and controlled in quarantine.
The remaining 162 passengers who tested and returned negative PCR test results upon arrival are also placed in controlled quarantine.
All 127 high risk frontline workers went straight to quarantine after processing the flight and will remain there for up to 72 hours.
