German police are investigating claims that Russia was responsible for coordinating a sabotage campaign that aimed to blame environmentalists and the Green Party for the vandalism of hundreds of cars.

What we know about the car vandalism

Over 270 vehicles in Berlin and the surrounding state of Brandenburg, as well as in the southern states of Bavaria and Baden-Württemberg, had their exhaust pipes blocked with expanding construction foam.

According to Spiegel news magazine, police found construction foam cartridges and foam guns in a van driven by three men during a routine patrol in Schönefeld, just outside Berlin, in December. Shortly after, 43 car owners filed reports of damage to exhaust pipes.

Stickers were then left on the damaged cars depicting Vice-Chancellor Robert Habeck, the Green Party's chancellor candidate in the upcoming federal election, and bearing the message: "Be greener!"