France is imposing a compulsory 10-day quarantine on travellers flying from Argentina, Brazil, Chile and South Africa.  The new measure has been introduced amid concerns about the highly contagious P1 coronavirus variant, the prime minister's office said on Saturday.  

The mandatory quarantine restrictions on travellers from Argentina, Chile and South Africa will be gradually introduced over the coming days, becoming fully enforced from next Saturday.  

Authorities will check before and after the flight to ensure travelers have arrangements to isolate themselves.  The police will also be used to ensure the quarantine is respected. People found breaking the quarantine will face fines.  

Travelers will additionally have to show a negative polymerase chain reaction (PCR) test certificate that is less than 36 hours old, ahead of boarding their flight.