Environmental activists protest at Volkswagen headquarters
Environmental activists have protested outside the main entrance to Volkswagen's headquarters in Wolfsburg, Germany.
They have unfurled a banner reading "Das Problem" - a play on the car maker's marketing slogan "Das Auto".
The Greenpeace protesters also held a "C'' and a "2'' on either side of the round VW logo at the factory entrance, spelling out "CO2".
The protest came after Volkswagen announced that it had "understated" the carbon dioxide emissions on 800,000 vehicles.
Volkswagen has also admitted installing software on 482,000 cars that enabled them to cheat on American emissions tests for nitrogen oxide, a pollutant that contributes to smog and respiratory problems.
Volkswagen acknowledged that 11 million vehicles with small diesel engines worldwide have the software.
