A fire at a substation in Reutlingen, southern Germany, has triggered a large-scale power outage and prompted a terrorism investigation after authorities found evidence of deliberate arson. The blaze, which broke out late on Sunday, 7 June 2026, left parts of the city without electricity for more than 12 hours and forced the deployment of emergency services across multiple districts.
Firefighters were called to the Umspannwerk Reutlingen substation at 22:47 local time after reports of flames and thick smoke. By midnight, the blaze had been brought under control, but not before causing a city-wide blackout that affected hospitals, traffic signals, and public transport. The state prosecutor’s office in Stuttgart confirmed on Monday that investigators had found accelerants at the scene, raising suspicions of intentional sabotage. “The fire shows clear signs of having been started deliberately,” a spokesperson for the Baden-Württemberg State Criminal Police Office said. “We are now working with the Federal Criminal Police Office’s counter-terrorism unit to determine whether this was an act of terrorism or criminal vandalism.”
The power failure disrupted daily life across Reutlingen, a city of 115,000 people. Hospitals activated emergency generators, while traffic lights failed at major intersections, leading to gridlock during the Monday morning rush hour. Local media reported that schools remained closed and that some residents were unable to use ATMs or charge electric vehicles. “This was not just an accident—it was an attack on our infrastructure,” said Reutlingen Mayor Thomas Keck. “We will do everything in our power to bring those responsible to justice.”
The investigation is ongoing, with police appealing for witnesses who may have seen suspicious activity near the substation between 20:00 and 23:00 on Sunday. Authorities have not ruled out the possibility that the fire was linked to broader security threats, given recent warnings about potential attacks on critical infrastructure in Europe. The incident follows a pattern of similar arson attacks on power facilities across Germany in 2025 and early 2026, though none have resulted in prolonged outages until now.
As the city begins to restore power, questions remain about the resilience of Germany’s energy grid. The federal network agency has pledged to review security protocols at substations nationwide, while local officials have called for increased police patrols around key infrastructure sites. For now, Reutlingen’s residents are left to navigate a city still grappling with the aftermath of what authorities describe as a “deliberate and dangerous act of disruption.”