SOCHI, Russia, , Muharram 30, 1437, November 12, 2015, SPA -- President Vladimir Putin said on Wednesday Russia needed to conduct its own investigation into allegations its athletes had systematically taken performance-enhancing substances and that someone needed to take personal responsibility for the problem, according to Reuters. Putin, in his first comments since an independent commission from the World Anti-Doping Agency (WADA) levelled its accusations, said Russia needed to cooperate with international organisations looking into the issue as openly as it could. --SPA 00:45 LOCAL TIME 21:45 GMT www.spa.gov.sa/w