The French telecoms network was targeted by vandals affecting landline and mobile services.
Last week high speed rail line was sabotaged in “coordinated” attacks on the French SNCF rail network that coincided with the opening of the Olympics.
Marina Ferrari, French junior minister for digital matters said she “condemns” these “cowardly attacks.
She wrote on X, “Under my supervision, the Center for Defense Electronic Communications cooperates with operators until communications and services are fully restored.
“I condemn in the strongest terms these cowardly and irresponsible acts,” she wrote.
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“Thank you to the teams mobilised this morning to carry out repairs and restore damaged sites to service.”
On Monday French media reported that telecom firms such as Bouygues Telecom and SFR had been attacked by vandals.
Le Parisien newspaper and BFM TV said electrical cabinets in southern France were cut and near to the Luxembourg and the Oise area near Paris was also vandalised.
France’s interior minister Gerald Darmanin said that on Sunday arrests had been made in Seine-Maritime, Normandy western France.
“We have identified the profiles of several people,” he told France 2 TV.