Paula Radcliffe has been cleared of doping allegations by the IAAF.

The world athletics governing body has reacted to a recent allegation made by a British parliamentary committee, which effectively linked the marathon world record holder to doping claims.

Radcliffe, who had denied any accusations, says it's been a frustrating process.

"It shouldn't have had to come to this and I am still waiting for WADA (World Anti-Doping Agency) to come out with their report. I know they've looked. But I'm glad that the IAAF have been able to put it all down in writing," she said.