The International Basketball Association's (FIBA) decision was confirmed by the body's communications director Patrick Koller, who told insidethegames this morning that a suspension had been approved following a meeting yesterday, to come into operation with immediate effect.

This marks the latest blow to SportAccord following the controversial speech by its President Marius Vizer at last month's Convention in Sochi, where he strongly criticised the International Olympic Committee (IOC) and its President Thomas Bach,

Vizer alleged the IOC "lacked transparency", that its Agenda 2020 reform process had brought "hardly any benefit" to sport and that it had unfairly blocked SportAccord in its drive to organise new Commissions and events.

Every summer sport body except for the Vizer-led International Judo Federation signed a letter supporting the decision of the Association of Summer Olympic International Sports Federations (ASOIF) to "disassociate" its affiliation with SportAccord, while both the International Paralympic Committee and the Commonwealth Games Federation have made a similar move.

FIBA's withdrawal follows those of athletics, shooting, archery, canoeing, boxing, hockey, taekwondo, wrestling, bobsleigh, triathlon, weightlifting, rowing, modern pentathlon, volleyball, equestrian, curling, table tennis, rugby, fencing and cycling, with more likely over coming days.

Bach is set to consult with key stakeholders before deciding whether to accept an invitation made by Vizer on Tuesday (May 19) to hold a summit on the crisis.

Both Bach and Francesco Ricci Bitti, head of ASOIF, have been invited to stage talks for "positive discussions which will lead to tangible solutions".

Vizer recommends next week in Lausanne or in Paris between June 5 and 7.

If the proposal is accepted, the meeting will take place before the IOC Executive Board meeting in Lausanne on June 7, and then the IOC Candidate City Briefing for the 2022 Winter Olympic bidding race on June 9 and 10, which is set to be one of the first major gatherings of the Olympic Movement since the SportAccord Convention.

Vizer has also this week published a 20-point agenda, which has been communicated to Bach, Ricci Bitti and the Presidents of all Federations, and covers a wide range of issues.

As well as proposing the introduction of prize money for Olympic athletes, Vizer has also called for 50 per cent ownership of the Olympic TV Channel by all International Federations, as well as “complete transparency regarding consultants, wages and contracts”.

But in a letter sent yesterday, seen by insidethegames, Ricci Bitti urged Vizer to stop speaking on behalf of International Federations, claiming they “do not feel represented” by the union he heads.

Related stories
May 2015: ASOIF President Ricci Bitti urges Vizer to stop speaking on behalf of International Federations
May 2015: International Fencing Federation suspends SportAccord membership
May 2015: David Owen: Vizer spells out his version of Agenda 2020, but is anyone still listening?
May 2015: Introduction of Olympic prize money among radical proposals made by Vizer ahead of proposed meeting with Bach
May 2015: Equestrian, curling and table tennis suspend SportAccord membership