WHO seeks virus tests

The World Health Organization has asked the IOC to analyze virus levels in Rio de Janeiro's Olympic waters, and the governing body of world sailing says it will begin its own independent tests.

The moves come after an Associated Press investigation showed a serious health risk to Olympic athletes in venues around Rio that are rife with sewage.

In a statement to AP, the World Health Organization said it suggested the International Olympic Committee start monitoring for viruses at the Rio venues.