French fibre optic cables sabotaged
dw.com
dw.com
At least in Poland they had a more subtle plot as they were hiring Russians with Ukrainian citizenship for arson, so they could also use it in propaganda, "You are supporting Ukraine but Ukrainians pay you back in kind". But in France it's just pathetic, they haven't achieved anything.
PS: maybe they will understand finally that you can't "deal" with terrorists, of any size, be they Hamas or Ruzzia.