Athletes and their close contacts will have daily coronavirus tests at this summer's Tokyo Olympics, organisers said Wednesday, up from a previous plan for tests every four days.

The Tokyo Olympics banner at the Metropolitan Government Building in Tokyo, Japan, January 22, 2021. (Photo: CFP)

"In principle, athletes and all those in close proximity with athletes will be tested daily to minimise the risk of undetected positive cases," Tokyo 2020 said in a statement.