IOC disqualifies four Russians from London Olympics over doping

Russia's Victoria Valyukevich competes in the women's triple jump final during the London 2012 Olympic Games at the Olympic Stadium August 5, 2012. REUTERS/Reinhard Krause

BERLIN (Reuters) - The International Olympic Committee said on Thursday it had disqualified four Russian athletes from the 2012 London Olympics after re-tests of their samples came back positive for banned substances.

The IOC said all four - Victoria Valyukevich, a triple jumper who was eighth in the women's competition, hammer throwers Gulfiya Khanafeeva and Mariia Bespalova, and weightlifter Khadzhimurat Akkaev, who did not compete due to a back injury, had tested positive for anabolic steroid turinabol.