Lyce · Hybrid Watch

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Suspected arson attack at Nice electricity transformer causes second major blackout on the French Riviera.

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During the early hours of 25 May 2025, a fire damaged an electricity transformer in the Les Moulins district of western Nice, causing a power outage affecting approximately 45,000 households. The disruption temporarily interrupted tram operations and electricity supplies at Nice Côte d’Azur Airport. French police discovered evidence of unauthorised entry into the facility, including indications that a secured technical room had been accessed. Nice prosecutor Damien Martinelli opened an investigation into suspected organised arson. Electricity supplies were restored by approximately 05:30. The incident occurred one day after two separate attacks against electrical infrastructure near Cannes, prompting local authorities to increase security around strategic power installations. Two anarchist groups claimed responsibility for attacks in the region, but investigators had not verified the claims or established Russian involvement.

Occurrence
Publication
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Countries
France
Updated

Attribution

Pattern-compatible

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    Discovery lead
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    During the early hours of 25 May 2025, a fire damaged an electricity transformer in the Les Moulins district of western Nice, causing a power outage affecting approximately 45,000 households. The disruption temporarily interrupted tram operations and electricity supplies at Nice Côte d’Azur Airport. French police discovered evidence of unauthorised entry into the facility, including indications that a secured technical room had been accessed. Nice prosecutor Damien Martinelli opened an investigation into suspected organised arson. Electricity supplies were restored by approximately 05:30. The incident occurred one day after two separate attacks against electrical infrastructure near Cannes, prompting local authorities to increase security around strategic power installations. Two anarchist groups claimed responsibility for attacks in the region, but investigators had not verified the claims or established Russian involvement.