A far-left activist group, Vulkangruppe, claimed responsibility for a suspected arson attack that caused a massive power outage in Berlin early Saturday. The attack left approximately 45,000 households and 2,200 businesses without electricity. The group stated their target was the fossil fuel economy, not disrupting power supply.

The incident occurred near a power plant in southwest Berlin where cables on a bridge were found burning. The fire was extinguished quickly, but the damage caused widespread disruption. Authorities suspect incendiary devices were used.

The power outage impacted hospitals and care facilities, which were supplied with emergency generators. Full power restoration is expected by Thursday, leading to school closures at the start of the week. Berlin's mayor condemned the attack, citing the risk to vulnerable populations.

The state economy minister confirmed the damage was caused by arson. The financial impact of the outage on businesses remains to be assessed.

Investigations are ongoing. Authorities are working to restore power and prevent further incidents.