Oleksandr Pyatnytsya.jpg
Oleksandr Pyatnytsya
Photograph: Photo by Jon Connell, used under CC BY-SA

Ukrainian javelin thrower Oleksandr Pyatnytsya has been stripped of his silver medal from the 2012 Olympics by the International Olympic Committee (IOC) after a retest of his sample exposed an illicit substance.

The IOC says that the steroid turinabol was found in the retest and that its disciplinary committee imposed the sanction.

Antti Ruuskanen of Finland now moves up to silver and Czech Vitezslav Vesely up to bronze from fourth. The gold was won by Trinidad and Tobago thrower Keshorn Walcott.

The IOC also said that three other athletes were caught in retests of samples from Beijing 2008 and London 2012, none of them medallists. They are weightlifters Nurcan Taylan of Turkey and Hripsime Khurshudyan of Armenia, and Belarus hammer thrower Pavel Kryvitksi.

The IOC has conducted a series of retests with new scientific methods as it stores Olympic samples for 10 years.

In total, 98 athletes have tested positive in two rounds of retests from the two Games in which 1,243 samples were examined. The 840 Beijing retests saw 60 adverse findings (23 medallists alone in the second wave) and the 403 London tests 38.

The IOC said it would conduct four waves of retests in all from 2008 and 2012, with the analysis continuing until after Rio.

"To provide a level playing field for all clean athletes at the Olympic Games Rio 2016, the IOC has already put special measures in place, including targeted pre-tests and the re-analysis of stored samples from the Olympic Games Beijing 2008 and London 2012, following an intelligence-gathering process that started in August 2015," the IOC said Tuesday.

At the Rio Games which opened Friday, the IOC is conducting a total of 5,500 doping tests, including for the top five finishers and two randomly chosen athletes from every event.

Latest news

North Korean envoy to Malaysia: 'We cannot trust the investigation'

North Korea "cannot trust the investigation" by Malaysian police into the death last week of North Korean leader Kim Jong Un's half-brother, Pyongyang's ambassador to Malaysia said Monday.

Kim Dotcom loses latest round in extradition saga

German internet entrepreneur Kim Dotcom has lost another legal round after the New Zealand High Court ruled that he and three of his colleagues can be extradited to the United States, but he said Monday his fight is far from over.

Thai monks clash with police on fifth day of high-profile temple raid

Several monks were injured early Monday in clashes with Thai police at a Buddhist temple where thousands of officers have been searching for a former abbot wanted on money laundering and land encroachment charges.

Cambodia passes bill easing requirements to abolish political parties

Cambodia's parliament passed a controversial bill on Monday allowing the government to abolish political parties whose members have been convicted of criminal charges, a senior opposition lawmaker has confirmed to dpa.

Former VP Moreno wins first round of Ecuador's presidential elections

Leftist former vice president Lenin Moreno has won the first round of presidential elections in Ecuador on Sunday, according to preliminary results released by the country's electoral authority.

Report: US and Russia supply over half of global arms

The United States and Russia supplied more than half of the world's arms over the past five years, a period that saw arms transfers reach their highest volume since the end of the Cold War, a Swedish-based research institute said Monday.

Messi's last minute penalty saves Barcelona from shock draw

Barcelona beat Leganes 2-1 with a last minute penalty from Lionel Messi in the Spanish first division on Sunday.

At least 30 injured after explosion in Bogota

A explosion in the Macarena area of Bogota injured at least 30 people on Sunday, many of them police officers who were guarding a bull running through the streets of the Colombian capital.

Vojvodina institutions hold conference on Bunjevci's non-Croat ethnic background

There are around 16,000 members of the Bunjevci community in Vojvodina who deny their Croat ethnic background. They are represented by the Bunjevci National Council which enjoys the support of state authorities, and, since the change of government in Vojvodina, of the provincial authorities as well.

SpaceX rocket blasts off from historic launch pad en route to ISS

A commercial rocket built by SpaceX is on its way to the International Space Station (ISS) with a load of research equipment, cargo and supplies, NASA said Sunday.

Defence deals worth 1.2 billion dollars announced at key UAE show

Deals worth nearly 4.4 billion dirhams (1.2 billion dollars) were reached at a major defence show that opened Sunday in Abu Dhabi, the capital of the United Arab Emirates (UAE), an official said.

Thousands protest in Malta against controversial press law reforms

Thousands of people attended a demonstration in Malta on Sunday, answering a call by the main opposition party to protest against what it described as a threat to democracy and freedom of expression.