On 2026-09-01, unknown persons attempted to cause short circuits near the Jänschwalde coal power plant in southern Brandenburg by introducing conductive material into high-voltage lines. ^[1] At least one detonation occurred on Tuesday, 2026-09-01, at the substation in Turnow-Preilack, Brandenburg, Germany. ^[2] German police opened terrorism investigations on 2026-09-02 after an attack on a substation in Brandenburg, Germany, involving explosive devices. ^[3] Brandenburg Interior Minister Jan Redmann said on 2026-09-01 that police found a double-digit number of devices and that the attack was systematic. ^[4] Redmann said investigations are running in all directions and that past attacks in the region came from the left-extremist spectrum, but foreign powers cannot be ruled out. ^[5] Redmann said that in two cases conductive material was successfully introduced into the high-voltage line, while in other cases it did not succeed. ^[6] German police said on 2026-09-02 that they assume an intentional act caused several power lines to fail in a substation near Cologne, Germany, in a similar incident reported in the night to Wednesday. ^[7]