10/30/2012 05:05 EDT | Updated 12/30/2012 05:12 EST

Adelaide strips Lance Armstrong of key to the city after doping findings

ADELAIDE, Australia - The Australian city of Adelaide has stripped Lance Armstrong of its highest honour — the key to the city — following the removal of his seven Tour de France titles.

Adelaide had a small but important part in Armstrong's career. The Tour Down Under, based in the city, was the first event he contested when he made a comeback to professional cycling in 2009, and his third appearance in the race in 2011 was also his last on cycling's ProTour.

Adelaide city councillors voted 6-1 on Tuesday to strip Armstrong of the key to the city, making him the first of 33 recipients to have the honour withdrawn.

The U.S. Anti-Doping Agency recently reported extensive evidence that Armstrong used performance-enhancing drugs during all seven of his tour victories.