The IAAF have released their initial comments following the arrest of coach Jama Aden. The former runner was under investigation for alleged doping offences and is the current trainer of world record holder Genzebe Dibaba.
On Monday, the IAAF said: "The arrest today of distance running coach Jama Aden follows a lengthy investigation by the IAAF which began in 2013, working in close cooperation with Interpol, the Spanish authorities including the Spanish National Anti-Doping Agency (AEPSAD), Spanish police and other organisations.
"The IAAF will use all available resources and powers to protect clean athletes and the integrity of our sport. This includes targeting and investigating individuals and coaches who are intent on exploiting athletes and promoting the use of prohibited substances.
"The IAAF will not be making further comment on the ongoing investigation."
Aden's arrest is the latest in a long line of moves by anti-doping to eradicate cheats from the sport.