The government has begun considering revising its contentious plan for the construction of the main stadium for the 2020 Tokyo Olympics in response to public criticism over its soaring cost, a government source said Wednesday.

The government will consider changing the stadium's design or extending the construction period as a way to cut costs, the source said.

Either way, it could be difficult to use the new stadium for matches of the Rugby World Cup in Japan, which will kick off in the fall of 2019.