Rio vows 'great Games' despite concerns

Organizers of the 2016 Olympics have acknowledged there are issues to be resolved in preparing Rio de Janeiro to host the event but said on Wednesday they were making progress and would deliver a "great Games".

The guarantees came a day after international sporting federations, meeting in Turkey, criticized the Brazilian government for the slow pace of work and a lack of institutional support.

"We are fully aware of the issues that need to be resolved. We are grateful for the input from all stakeholders," Rio2016 said in a statement.