The 20th Asian Games opened in Japan on Saturday. The opening ceremony marked the start of a 16-day event.

Some competitions had already begun before the ceremony. Organizers faced pressure before the opening ceremony.

Thousands more athletes and officials signed up than expected. This caused accommodation problems for organizers.

No official athlete total was released. About 17,000 athletes and officials are estimated to attend.

Organizers used a cruise ship for lodging. They also used hotels and converted wooden containers.

There was no traditional athletes' village this time. The Games include competitors from 45 countries and regions.

Athletes will compete in 43 different sports. The Asian Games have more athletes than the Summer Olympics. The Games are held every four years.