The French government has warned it could cut electricity to Jersey amid an escalating row over post-Brexit fishing rights.
Maritime Minister Annick Girardin told the French parliament that new rules governing access to Channel Islands waters were unacceptable.
She said France was ready to use “retaliatory measures”.
She said: “I am sorry it has come to this but we will do so if we have to.”
Jersey, the largest of the Channel Islands, receives 95% of its electricity through three underwater cables from France.