Fukushima is the Japanese region exposed to high levels of radiation following a tsunami-triggered meltdown at a nuclear power plant in March 2011.
The Olympics will start two days before the opening ceremony on Friday
There have been nine positive cases among those linked to the Games on Tuesday, taking the overall number of people infected since the start of July to 71.
The athlete left a note at his hotel saying he wanted to work in Japan before buying a train ticket to Nagoya.
The central fan zone in Tokyo will be closed to the public during the Olympic Games due to coronavirus restrictions, organisers said on Thursday.
The D’Tigers have been funded chiefly by private individuals and friends of the Nigerian Basketball Federation, with no visible support from the government.
The U.S. men’s team have never lost to an African side before, in fact, the last time they were matched against Nigeria, they won by 43 points in an exhibition in 2016.
Buhari will on Monday host members of Team Nigeria to the Tokyo Olympics at the Presidential Villa before the final batch of the contingent departs for Japan.
Team Nigeria will be travelling to Kizarazu city in Japan for the pre-Games training camp in four batches.
On Friday, Ms Richardson told NBC that her use of marijuana as a way to cope with the death of her mother while she was in Oregon for the Olympic trials.
