Johnson said on Sunday that Britain would “soon” quarantine air passengers from abroad due to the coronavirus pandemic. Some reports had indicated London was contemplating a mandatory 14-day quarantine for all travellers from outside the British Isles.

In telephone talks, the two leaders vowed to work together to prevent the risk of cross-border contamination as COVID-19 infections finally begin to fall, the Elysée said.

“No quarantine measure will apply to travellers from France at this stage; any measure from one side or the other will be taken in a coordinated and reciprocal way,” the Elysée said.

It added that a working group would be set up “to ensure this cooperation during the next weeks”.

France has also laid out plans to quarantine travellers arriving in the country, but after some initial confusion later clarified that the quarantine would only apply to people arriving in France from outside Europe.

Anyone arriving from within the EU, including the UK, and the Schengen Zone would not be subject to quarantine.

All travel into France is currently heavily restricted, with only essential travel allowed and everyone needing an international travel certificate to cross the border.

These restrictions will stay in place until at least June 15th, the French government announced last week.