"We cannot agree with the International Olympic Committee (IOC), but we will not oppose their decision, as it is the IOC that has the final say in the matter," says Tokyo Mayor Yuriko Koike, adding:

- In other words, it is a decision without consensus.

The reason why the competitions are being moved is for the athletes to release the heat and humidity expected during the Olympics. As an example, the IOK has taken the athletics world championships in Doha, when many were forced to cancel the marathon and walking races because of the heat - even though the race was decided in the middle of the night.

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Why is it dangerous to run in the heat?