At least 30 Volkswagen managers played a role in using software to cheat on emissions testing on more than 10 million diesel cars, Der Spiegel reports.

The German magazine is citing reports by Volkswagen, as well as by law firm Jones Day, and says the managers will likely be suspended. A VW spokesperson says "This number is without foundation.

Due to the ongoing investigation we will not reveal the number nor the names of possible persons concerned."

Meanwhile, VW's newly chosen head of North America, Winfried Vahland, is leaving the company just two weeks after being designated for the post. According to a Reuters report, Vahland, who's been running VW's Skoda brand, is leaving over differences of opinion with the Board.

This week, VW announced it plans to recover from the scandal by increasing its focus on electric cars, including plans for a plug-in hybrid Phaeton sedan.