A left-wing extremist group has claimed responsibility for an “attack on the power supply” at the Tesla factory near Berlin, saying it was an act of protest against the US car manufacturer. “We sabotaged Tesla today,” a letter from the Vulkangruppe (Volcano group) stated. In the early hours of Tuesday, a burning electricity pylon caused a major power outage in the region near the factory. Production at Tesla’s only European plant in Grünheide came to a halt, and the factory was evacuated. Numerous households in the region were also affected. Police are currently assuming arson and the State Cr…