People in the central Japanese prefecture of Gifu have moved about 1,000 ornamental carp from a river where snow is usually dumped during the winter to a pond.
About 30 people participated in the annual event in Hida City's Furukawa Town on Sunday. Officials from a local tourism association and volunteers were among them.
Sources say the organizing committee of the Tokyo Olympics and Paralympics now estimates that the extra costs related to the Games' postponement will come to about 200 billion yen, or 1.9 billion dollars.
The original cost estimate for the Games was about 13 billion dollars, excluding a reserve fund.
Japanese officials reported 2,066 new cases of the coronavirus on Sunday.
Sixteen people died of the disease.
Sightseeing spots across Japan have been welcoming visitors on the first Sunday since the government declared the next three weeks as crucial to curbing the spread of the coronavirus.
Popular tourist attractions in Tokyo were mainly visited by local residents who had decided against long-distance travel.
Tokyo Metropolitan Government officials say 418 new cases of the coronavirus had been confirmed in the capital by 3 p.m. on Sunday.
This is the highest figure for a Sunday, exceeding the 391 cases marked a week ago. The tally topped 400 for the 5th day in a row.
Japanese lawmakers have celebrated the 130th anniversary of the opening of the country's parliament.
The beginning of Japan's parliamentary system dates back to 1890, when members of the Imperial Diet gathered for the first time.
A fireball was seen by people across wide areas of western Japan in the early hours of Sunday.
NHK cameras in the prefectures of Mie, Aichi and elsewhere captured the fireball in the southern sky at 1:34 a.m.
A group of cancer patients across Japan has asked the government to ensure that they can receive care amid concern that hospitals are under growing strain due to the surge in coronavirus cases.
The Japan Federation of Cancer Patient Groups wrote in a letter to the government that if the pandemic continues putting strains on the healthcare system, treatment for cancer patients may be canceled or suspended. This could result in a severe deterioration of patients' health.
The Japanese government has dispatched a special envoy to a war-torn region of Myanmar to help carry out voting that was postponed due to fighting.
Myanmar held a general election on November 8 but the election commission postponed voting at all nine electoral districts in Rakhine State. The government has not said when voting in the region will take place.
Tokyo Governor Koike Yuriko says she will consider steps relating to the central government's "Go To Travel" domestic tourism campaign, while monitoring the situation of coronavirus infections in the capital.
Koike told reporters on Saturday that the metropolitan government has sent inquiries to relevant ministries and agencies to obtain details of the campaign's temporary suspension. She said she will consider what to do after receiving responses.
A record 2,684 people were found to have been infected with the coronavirus in Japan on Saturday.
Fourteen deaths have also been reported.
Japan's top court has rejected an appeal by a secretary to a politician accused of election violations. A suspended prison sentence will be finalized for the aide to Diet lawmaker Kawai Anri.
Prosecutors are also likely to file a lawsuit seeking to nullify the election win of Kawai, a former member of the main ruling Liberal Democratic Party, on the basis of guilt by association.
Prime Minister Suga Yoshihide has urged the three branches of Japan's Self-Defense Forces to overcome boundaries between them in order to better respond to new challenges.
Suga addressed around 800 members of the Ground, Maritime and Air Self-Defense Forces on Saturday at an air review ceremony at Iruma Air Base in Saitama Prefecture.
People campaigning in Hiroshima have started collecting signatures to urge the Japanese government to sign and ratify the UN treaty banning nuclear arms. The treaty will come into force in January.
A group of about 30 people appealed for support near Peace Memorial Park in the western city on Saturday. Visitors were seen responding to their calls.