VW Says Top US Executive Stepping Down Immediately

FILE - Michael Horn, President and CEO of Volkswagen America, reacts to being mobbed by the media after he apologized for the Volkswagen diesel scandal at the LA Auto Show in Los Angeles, California, Nov. 18, 2015.

Volkswagen AG said on Wednesday its top U.S. executive is stepping down nearly six months after the German automaker admitted to installing software to allow 580,000 diesel U.S. vehicles to emit excess emissions.

Michael Horn, who has been president and chief executive officer of Volkswagen of America since 2014, is leaving "to pursue other opportunities effective immediately," the company said.

The German automaker said on an interim basis, Hinrich J. Woebcken, who was recently named the new head of the North American Region and chairman of Volkswagen Group of America, will assume Horn's role.