An attack on Berlin's power grid has left approximately 35,000 households and 1,900 businesses without electricity, with restoration efforts underway. Security authorities have authenticated a letter claiming responsibility from the far-left activist group 'Volcano Group,' which stated the action targeted the fossil-fuel industry. This incident follows a similar suspected arson attack in September that affected 50,000 households and bears resemblance to a 2024 attack on Tesla's gigafactory.