More than 80 percent of the tickets available for the Rio Olympics have been sold, organizers said on Saturday.

Fans have spent 1.03 billion reais ($320 million) on tickets, representing 96 percent of the target set by the Rio 2016 organizing committee.

Some 6.1 million tickets were made available for the Games. According to organizers, ticket sales revenue is expected to make up 16 percent of the cost of running the Olympics, which run from Aug. 5 to 21.

The figures were presented in a report to the International Olympic Committee during its last meeting with organizers before Friday's opening ceremony.

The report also included an update on unfinished construction work at the Olympic village, which prompted some delegations to delay their arrival.

"Everything is on track," Rio 2016 president Carlos Nuzman said. "All Games have problems. The forecast is that within three, four or five days, we will correct a lot of things," he added.