The Organizing Committee of the Tokyo 2020 Olympics is considering using a hydrogen fuel relay torch to light the Olympic flame, according to committee officials.

The organizers, who hope to use the games as an opportunity to showcase Japanese technology, said the government has expressed support for the idea. The torch will be carried by runners and used to ignite the cauldron at the opening ceremony.

"An important theme of the Olympics is how to promote environmental sustainability. We will talk to experts and see how realistic it is in terms of technological development," a committee member said.