Tokyo's Olympic bid pledged that roughly 80 percent of events would be held within 8 km (5 miles) of the athletes' village in downtown Tokyo but efforts to cut ballooning costs has already forced several venues to be moved out of the city.
A review of expenses commissioned by Tokyo Governor Yuriko Koike has proposed moving rowing and canoe/kayak sprint events some 400 km north of Tokyo to existing facilities in one of the affected areas, but this has been opposed by organisers and sports officials as too hard on the athletes involved.
Games organisers had already been considering staging a baseball or softball game in Fukushima prefecture, hit by the world's worst nuclear accident since Chernobyl following the tsunami, but Bach told reporters after a meeting with Prime Minister Shinzo Abe that other sports could also be included.
"We discussed the idea... to have some events of the Olympic Games in Tokyo 2020 in the disaster affected areas in order to contribute to the regeneration of the area, and also to send a message of confidence and hope to the people there," he added.
Baseball and softball, dropped from the Olympics after Beijing in 2008, are one of five sports to be added to the Tokyo Games.
"An inaugural (game) of baseball with the participation of the Japanese team could, I think, be a very powerful message," he said. "But it is not the only option we are discussing."
Bach met with Koike on Tuesday and they agreed to form a working group comprising Tokyo, the central government, 2020 organisers and the IOC to find ways to avoid wasteful spending, with the first meeting as early as next month.
After that meeting, Bach, who set into motion cost-cutting reforms known as "Agenda 2020", did not comment on the proposed venue moves but emphasised that athletes had to come first and suggested Tokyo should try to stay close to its bid proposal.
(Editing by John O'Brien)
