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May 23, 2026
Analyzed by GPT OSS 120B

Berlin’s Five‑Day Blackout: Volcano Group’s Sabotage Exposed

AI Summary
A deliberate arson attack on high‑voltage cables caused a five‑day power outage across Berlin, affecting 45,000 homes and several hospitals. The mystery perpetrators, calling themselves the Volcano Group, have sparked debate over political motives and future infrastructure security.

Five‑Day Berlin Blackout: A Sabotage Unveiled

On 3 January 2026, a fire set on five high‑voltage cables under a bridge over the Teltow Canal plunged large parts of Berlin into darkness for five days, marking the longest outage since World War II. The attack was claimed by a self‑styled “Volcano Group”, linking the sabotage to broader anti‑fossil‑fuel activism.

Arson on High‑Voltage Cables Triggers Citywide Outage

Approximately 12 km from the Immanuel Hospital, the cables—each 10 cm thick and supplying power to about 45,000 homes, 2,200 businesses and four hospitals—were set ablaze. The fire was captured on video by Stromnetz Berlin, the city’s state‑owned grid operator, showing the cables burning above a pile of debris.

Scale of the Outage: Numbers and Immediate Consequences

  • 10,000 homes restored electricity by the next day.
  • 35,000 homes remained without power for the full five days.
  • Hospitals relied on emergency generators; Immanuel Hospital’s diesel tank held 3,000 L and burned ≈550 L/day.
  • Hospitals faced cancelled surgeries, heating failures, and patient evacuations.

Human Toll and Hospital Operations Under Strain

Technicians at Immanuel Hospital rerouted power to gas pumps, averting a heating crisis. At the nearby Hubertus Hospital, director Michael Schmidt evacuated 150 patients and postponed operations. Residents endured a “dystopian” atmosphere, with makeshift community support emerging around hospital canteens.

Future Security Measures and Threat Landscape

The confession, posted on left‑wing platforms, framed the act as “shutting down fossil fuel power stations”. The Volcano Group has a history of at least seven attacks since 2011, often referencing Icelandic volcanoes. Authorities now face pressure to harden vulnerable infrastructure points—especially above‑ground crossings like the Teltow Canal bridge—and to monitor anonymous activist channels for similar threats.