Tokyo Olympics construction worker dies from suspected heatstroke

Japan's capital has had temperatures above 31C for two weeks, prompting fears for 2020 Games' athletes

Heatstroke is suspected in the death of a worker at a Tokyo Olympics construction site, NHK national television has said, as the Japanese capital swelters through a scorching weather that has killed dozens of people.

Soaring temperatures have killed at least 57 people across Japan from 29 July to 4 August, highlighting the health threat to athletes and fans that is one of the biggest challenges for Olympics planners.