A ceremony was held on Saturday to mark the completion of the Tokyo Aquatics Centre, which will host swimming competitions in next year's Olympic and Paralympic Games.

The metropolitan government spent about 540 million dollars to build the venue, where 15,000 seats, including temporary ones, will be set up for the games.

Japanese swimming star Ikee Rikako has returned to competition for the first time in 19 months after revealing she had leukemia early last year.

She took part in the women's 50-meter freestyle on Saturday in a meet held at Tokyo Tatsumi International Swimming Center.

Japanese swimming star Ikee Rikako has invited media to view her training in a pool after her treatment for leukemia.

Ikee revealed her leukemia diagnosis in February last year. The 19-year-old left hospital last December and resumed training in mid-June after a pause due to the coronavirus outbreak.