A karate championship was held in Tokyo with new guidelines to prevent the spread of the coronavirus.
In June, the Japan Karatedo Federation called on karate athletes to refrain from uttering kiai shouts at tournaments in order to prevent infections through the spread of droplets.
Japan's prime minister and the head of the International Olympic Committee have agreed to work closely to hold next year's Tokyo Olympics and Paralympics safely.
Prime Minister Suga Yoshihide and IOC President Thomas Bach spoke by phone for about 15 minutes on Wednesday. The talks were their first since Suga took office as prime minister last week.
The head of the International Olympic Committee has stressed that the Tokyo Olympics and Paralympics can only be held in a safe environment for all participants.
IOC President Thomas Bach held a news conference on Wednesday after an online executive board meeting.
A hospital in Japan is using a robot to prevent the spread of the coronavirus.
The device is linked to a system that enables doctors and nurses to check on inpatients without having to enter their wards.
The organizing committee of the Tokyo Olympic and Paralympic Games has stressed it has not started discussions on whether to suspend or postpone the Games due to the ongoing new coronavirus outbreak.
Committee Director General Toshiro Muto told reporters in Tokyo on Wednesday that the basic policy is to prepare for a safe Olympic and Paralympic Games.