The Six Nations match between leaders France and Scotland on Sunday will be postponed, organisers said after an 11th French player tested positive for the coronavirus.

The Six Nations testing oversight group unanimously recommended that the match in Paris be postponed and "this will be ratified later today by the Six Nations council," it said in a statement on Thursday.

"We will be working on the rescheduling of this fixture and will communicate the date in due course."

The game was given the go-ahead on Wednesday despite 10 France players -- including captain Charles Ollivon and star scrumhalf Antoine Dupont -- testing positive for COVID-19 in checks over the past week.

An 11th player, as yet unnamed, then tested positive following another round of checks late on Wednesday, prompting training to be suspended on Thursday and the French squad to go back into isolation.

The decision to postpone the game now puts Scotland in a difficult position, especially if it is rearranged for next week.

Scottish Rugby said this week that such a rearrangement could leave the team without 10 players because those based in England and France will be released back to their clubs for domestic duty under World Rugby's player-release regulations.

The rest week for the tournament lies outside of World Rugby's designated international window.

France lead the Six Nations after away wins over Italy and Ireland. Scotland have one win and one loss.