Whatever it is, it's ongoing.

Aljazeera: Operations on multiple telecommunication lines in France have met with interruptions as they became the latest apparent target of sabotage linked to the Paris Olympics.

French police announced on Monday that the fibre optic networks of several operators had been targeted in six areas of France. The latest infrastructure issues were reported as the French government said it was eyeing far-left figures in connection with sabotage attacks on the country’s rail network.

Whatever far-left figures means. It does seem to be well organized - presumably with more attacks coming.