VW’s shares have dropped by a third over the past few days after VW admitted to selling cars around the world that were equipped with software that cheats on emissions tests.

There are fears that the Volkswagen scandal could have affect not just VW, but the wider German and European car industry.

The Volkswagen group includes Audi, SEAT, Skoda, Porsche, Bentley, Bugatti, and Lamborghini.

The models affected include the VW Jetta, Beetle and Golf from 2009 through 2015, the Passat from 2014-2015 as well as the Audi A3, model years 2009-2015. Owners of the “CleanDiesel” automobiles have filed a class action lawsuit against Volkswagen.

The company, however, said it was not aware of any similar issues outside the U.S.