The cases include a 36-year-old, a 94-year-old and an 82-year-old.
All three persons were reported to have all developed pneumonia due to Covid-19 and none of them were vaccinated.
The death toll has risen to 23 and a majority of the deceased are the elderly.
In a press conference, the National Emergency Operations Committee said up to Sunday last week, 1,114 new positive cases were recorded with 11,045 positive cases altogether since March 18.
This tally includes positive cases reported from flights.