Russian weightlifter Apti Aukhadov has been stripped of his silver medal from the 2012 London Olympics after testing positive for steroids in a reanalysis of his doping samples.
The IOC says Aukhadov tested positive for turinabol and drostanolone and has been retroactively disqualified from the London Games.
He has been ordered to return his silver medal in the 85-kilogram division.
The IOC stores doping samples for 10 years to allow them to be retested when new methods become available. The IOC has reported 98 positive cases from recent retests of samples from the London Olympics and 2008 Beijing Games.
The 23-year-old Aukhadov was also a world champion in 2013.
The IOC also announced that Ukrainian pole vaulter Maksym Mazuryk tested positive for turinabol and was disqualified from the London Games, where he finished 18th.