France's prime minister has tested positive for COVID-19, hours after returning from a visit to neighbouring Belgium and just as France is seeing a nationwide resurgence of infections.
Prime Minister Jean Castex will adapt his schedule for the coming 10 days to continue his activities in isolation, his office said on Monday.
Officials at the prime minister's headquarters did not comment on whether Castex has any symptoms.
One of his daughters tested positive on Monday after her father returned from a meeting with Belgian Prime Minister Alexander de Croo in Brussels, and Castex himself then took two tests that were both positive, his office said.
De Croo's office said he will be tested on Tuesday and will self-isolate while awaiting the result, according to Belgian state broadcaster RTBF.
While 75 per cent of France's population is vaccinated, the number of infections has risen quickly in recent weeks.
Hospitalisations and deaths linked to the virus are also rising in France, though are so far well below the crisis levels of earlier surges.
French President Emmanuel Macron contracted COVID-19 last December, and other government ministers have also had the virus.