The relay, due to reach Osaka in mid-April, is seen as the first major test of Games organisers' abilities to hold a large event under strict coronavirus curbs. It features 10,000 runners carrying the torch through all Japan's 47 prefectures.
The western metropolis of Osaka is grappling with a spike in coronavirus cases and the governor of Osaka prefecture has called for cancelling the leg that takes place in the city.
The head of the Tokyo 2020 Organising Committee, Seiko Hashimoto, said on Friday she wanted to seek an early decision on the relay, and a Tokyo 2020 spokesperson said they were looking into the situation and hoped to reach a decision soon.
'Athletes' emotions are really flying high' - IOC President Thomas Bach on Tokyo 2020 so far
Organisers require roadside spectators to wear masks, practise social distancing and not cheer out loud to prevent the spread of the novel coronavirus. There have been no reports so far of infections arising from the relay, which began on March 25.
Thomas Bach discusses the challenge of getting Tokyo 2020 to go ahead
Records fall in the pool, rowing drama, Djokovic dominates - Tokyo Today Day 6