Japan's top-ranked sumo wrestler Hakuho has tested positive for coronavirus.

The Mongolian-born grand champion took a Covid-19 test after losing his sense of smell, the Japan Sumo Association (JSA) said.

The news comes as Japan considers declaring a state of emergency in and around Tokyo, where virus cases have surged.

It has imposed relatively relaxed restrictions so far, with a more contained outbreak than some countries.

Activities like sumo wrestling have continued despite the pandemic, but cases have emerged in the sport too. In May, a 28-year-old Japanese sumo wrestler died from organ failure caused by the virus.

https://www.bbc.com/news/world-asia-55541444