Eight weightlifters who previously served doping bans have won medals at Rio, while others have been sent home for failed tests.
Germany's weightlifting coach has called for seven countries, including Kazakhstan, to be banned from international competition/
Overshadowed by the Russian Olympic doping scandal, the sport of weightlifting has been waging its own battle against drug cheats.
Kazakhstan's double Olympic champion Ilya Ilyin and three other gold medalists banned for failing dope tests at the 2012 London Olympics
The head of Kazakhstan's national anti-doping centre has pledged to crack down on drug cheats ahead of the Olympic Games in Rio de Janeiro.
Vladimir Putin ordered an inquiry into allegations of "state-supported" drug abuse in athletics that have left Russia facing a possible Olympics ban, but insisted any punishment should be individual and not collective.
Kazakhstan's Cycling Federation considered dropping Astana Cycling Team after several doping scandals last year.
The Union Cycliste Internationale (UCI) has requested the withdrawal of the World Tour license of Astana Pro Team following the completion of the team's audit.
Kazakhstan’s boxer Almat Serimov who represents Astana Arlans boxing club has failed a doping test.
A doping scandal has erupted after The 2014 World Weightlifting Championships that was held in Almaty, Kazakhstan on November 8-16.
Kazakhstani Astana Pro Team has been granted a provisional license for 2015 races.
Kazakhstani cycling team Astana is not competing in the Tour of Beijing because of positive doping tests.
Kazakh cyclist of Astana Proteam Valentin Iglinsky has been fired by the Kazakhstan club after his testes returned positive on erythropoietin (EPO).
The Kazakhstan Weightlifting Federation has fulfilled all the obligations towards the International Weightlifting Federation and the International Anti-doping Agency by toughening doping control in Kazakhstan.
A champion weightlifter of the Summer Universiade in Kazan Farkhad Kharki has been charge with committing a doping-related offence.
Kazakhstan Weightlifting Federation has been charged with a fine of $500 thousand for doping violations of several Kazakhstan athletes.
The International Weightlifting Federation has disqualified nine weightlifters from Kazakhstan.
German cycling racer Jan Ullrich, who admitted using blood-doping, might lose the medals he gained at the 2000 Olympics.
Kazakhstan's Olga Tsykunova (Tereshkova) has given birth to a baby girl and has already resumed her training sessions.
A meeting of Central Asian Regional Anti-Doping Organization (CARADO) was held in Almaty under the aegis of the World Anti-Doping Agency (WADA).