World steeplechase champion Marta Dominguez has been suspended from her Spanish federation post after being implicated in a doping investigation.
Dominguez, one of four vice presidents at the federation, was taken into custody and questioned for about eight hours before being released.
She was arrested after a police raid on her home on Thursday in connection with the trafficking and distribution of banned substances.
Dominguez won 3,000m steeplechase gold in Berlin in 2009 after taking silver in the 5,000m in 2003 and 2001.
A total of fourteen people have so far been detained and questioned as part of the investigation, including sports doctors, pharmacists, trainers, coaches, representatives and athletes.
Some of those detained were also implicated in the 2006 ‘Operation Puerto’, in which Spanish doctor Eufemiano Fuentes and his clients were investigated by police and 13 cyclists were subsequently withdrawn from the 2006 Tour de France.