The organizing body of the Tokyo Olympics said Thursday that 31 more people associated with the Games have tested positive for COVID-19, setting a record for the second straight day and bringing the total since the start of July to 353.

One of the newly confirmed cases is a Greek artistic swimmer, according to the organizing committee. Among the country's 12-member team, a total of six artistic swimmers have now tested positive for COVID-19 in what the committee regards as a cluster.

The team was initially staying in the athletes village but all members later relocated to isolation facilities.