Wuerth out as co-sponsor of team in doping probe

Updated: July 3, 2006, 12:03 PM ET

BERLIN -- German nuts and bolts company Wuerth said on Monday it was withdrawing immediately as co-sponsor of racing team Astana-Wuerth, following its withdrawal from the Tour de France over doping.

"The decision is a reaction to the suspension of individual riders and the related pulling out of the team from the 2006 Tour de France," the company said in a statement.

Five riders in the team appeared on a list of nine Tour riders named in a doping investigation in Spain. The team, formerly known as Liberty Seguros, is led by Kazakh Alexander Vinokourov, who was fifth last year.