France's fury with Australia over the decision to scrap a submarine contract isn't cooling.

Less than a week after Scott Morison assured the public the relationship was on the mend, the French President Emmanuel Macron has accused him of lying, while the French Ambassador in Canberra Jean-Pierre Thebault says things are now at an "unprecedented new low".

So is Scott Morrison making things worse?

And as relations with France continue to unravel, what might happen next?

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David Speers, Host, Insiders, ABC TV