All 63 re-analyzed blood samples from Russian athletes who participated in 2014 Sochi Winter Olympics were clean, the International Olympic Committee said.

"All 63 blood samples collected from Russian athletes at the Olympic Winter Games Sochi 2014 have already been re-analysed by the IOC in cooperation with Prof. McLaren, and were all negative," the statement said.

The IOC said it will re-analyze all Russian athletes' 254 probes at Sochi Olympics after the publication of McLaren's report.

"The IOC will re-analyse all 254 urine samples collected from Russian athletes at the Olympic Winter Games Sochi 2014, since Prof. McLaren’s mandate did not include a full re-analysis of all these samples," the IOC press release said.

Earlier in the day, Canadian sports law professor Richard McLaren presented the second part of his report in London. The report claims that over 1,000 Russian athletes benefitted from manipulations to conceal positive doping tests. Moreover, the report accused former Russian top Sports Ministry officials, as well as the Russian Anti-doping agency (RUSADA) and the FSB of being involved in covering up doping.

Two commissions established by the International Olympic Committee (IOC) in July will continue addressing issues related to allegations of state-sponsored doping in Russian sports following the publication of the second part of independent McLaren report, the IOC said on Friday.

"An Inquiry Commission, chaired by the former President of Switzerland, Samuel Schmid, is addressing the "institutional conspiracy across summer and winter sports athletes who participated with Russian officials within the Ministry of Sport and its infrastructure, such as RUSADA, CSP and the Moscow Laboratory along with the FSB”, in particular with regard to the Olympic Winter Games Sochi 2014," the IOC said in a statement.

"The Disciplinary Commission, chaired by IOC Member Denis Oswald, "is addressing the question of doping and manipulation of samples concerning the Russian athletes who participated in the Olympic Winter Games Sochi 2014," the statement said.

In July, a WADA commission led by McLaren presented the first part of the report based on the investigation results, in which Russia was accused of running a state-wide doping program, recommending the International Olympic Committee (IOC) to consider a blanket ban on the entire Russian team. The IOC instead opted to let individual sports federations decide on the matter.

As a result, the International Association of Athletics Federations (IAAF) banned the Russian athletes from taking part in international competitions including the 2016 Summer Olympics. The International Paralympic Committee (IPC) later banned all Russian Paralympic athletes from the 2016 Summer Paralympics and the 2018 Winter Games.