Queen Margrethe of Denmark has tested positive for COVID-19 for the second time this year, the royal court said on Wednesday.
The 82-year-old head of state, who has been on the throne for half a century, has canceled her appointments for the week.
She attended Queen Elizabeth's funeral in London on Monday.
Queen Margrethe, who has been vaccinated against the coronavirus, was also diagnosed with COVID-19 in February this year, showing mild symptoms at the time.
A palace spokesperson declined to give further comment on Wednesday.