IOC President Thomas Bach says the time has come for sport to play a greater role as a force for positive change.
The IOC has set up a hotline for whistleblowers to report match-fixing and other corruption in a new initiative to protect the integrity and credibility of the Olympics and other sports competitions.
IOC President launches festivities marking 100 years in Lausanne.
IOC launches medal design competition for Lillehammer 2016
The IOC plans to retest hundreds of doping samples in a bid to catch any drug cheats.
IOC: Toyota Motor Corp. has signed on as a worldwide Olympic sponsor in a long-term deal reportedly worth more than $US800 million ($A1.04 billion).
Demolition work has got underway at the National Stadium in Tokyo with construction of a new state-of-the-art arena for the 2020 Olympics and Paralympics due to begin in October.
Three venue changes have been approved for the Tokyo Olympic Games in 2020.
The IOC has wrapped up a busy week of meetings in Rio de Janeiro.
The IOC Executive Board has adopted an Implementation Plan for Olympic Agenda 2020.