After attack on Tesla plant: BKA warns of growing left-wing threat. A power pylon recently burned in East Brandenburg, bringing the nearby Tesla factory to a standstill.

Left-wing extremist group claimed responsibility for the arson - a growing problem, according to the Federal Criminal Police Office. "Taken together, the whole thing is an escalation of the threat from the left spectrum," says BKA boss Holger Münch. Approximately 56 percent of all politically motivated arson attacks are carried out by left- wing extremist groups.