The International Olympic Committee (IOC) has come under increasing pressure to cancel the sporting spectacle, scheduled to begin on 24 July, as the virus spreads across the globe.
Australia and Canada have already said their teams will not compete in Japan – with other nations expressing concerns over the health of athletes.
IOC member Dick Pound told USA Today: “On the basis of the information the IOC has, postponement has been decided. The parameters going forward have not been determined, but the games are not going to start on 24 July, that much I know.”
“It will come in stages,” said Pound. “We will postpone this and begin to deal with all the ramifications of moving this, which are immense.”
Neither the IOC or the Tokyo 2020 organising committee have yet officially announced a decision to postpone.