Japanese Foreign Minister Hayashi Yoshimasa is to visit the Indonesian island of Bali for two days from Thursday to attend a foreign ministers meeting of the Group of 20 economies.
The meeting is the first since Russia invaded Ukraine.
The Tokyo Metropolitan Government reported 8,341 new cases of the coronavirus on Wednesday. The figure is up 4,538 from a week ago, or 2.2 times the total last Wednesday.
This marks the 19th straight day of week-on-week increases and the second consecutive day that a daily tally more than doubled from a week earlier.
Japan's health ministry has asked municipalities nationwide to make sure that hospitals have enough beds and testing capacities amid the recent rise in coronavirus cases nationwide.
Data compiled by NHK shows that new infections continue to climb. Tuesday's figure of about 36,000 cases was up 90 percent from a week earlier.
People in parts of western Japan devastated by torrential rains four years ago remembered the victims of the disaster in ceremonies held on Wednesday.
Kurashiki City in Okayama Prefecture was one of the hardest-hit areas, with 75 people killed. The city held a memorial ceremony in Mabi Town, which suffered extensive damage in the disaster. About 60 people took part.
Major Japanese mobile communications provider KDDI says it will consider compensation for individual and business users after assessing the impact of a nationwide network disruption.
KDDI officials said at a news conference on Tuesday that its customer service center had logged more than 96,700 complaints and inquiries as of 1 p.m.
A tropical storm is on course to make landfall on Japan's southwestern main island of Kyushu.
The Meteorological Agency said as of 3 a.m. on Tuesday, tropical storm Aere was at sea some 50 kilometers west of Nagasaki City. It was moving north-northeast at about 20 kilometers per hour.
Tropical storm Aere is moving north toward Japan's southwestern main island of Kyushu, after passing near Okinawa. It is expected to come very close to Kyushu, possibly making landfall there on Tuesday.
Weather officials are warning of heavy rainfall in western and eastern Japan.
Tropical storm Aere will be approaching the southwestern Japanese islands of Okinawa and Amami through early Sunday morning.
Weather officials are calling on people in the areas to brace for strong winds, high waves, and possible landslides.
The Tokyo Metropolitan Government reported 3,616 new cases of the coronavirus in the capital on Saturday.
The figure was up 1,456 from a week ago and marked the 15th straight day of week-on-week increases.
Tropical storm Aere is expected to bring heavy rain and strong winds over the weekend to the islands of southwestern Japan.
The Japan Meteorological Agency says that as of 9 a.m. on Saturday, Aere was 160 kilometers south-southwest of Minami Daito Island in Okinawa Prefecture. It was moving north-northwest at a speed of 30 kilometers per hour.
Japanese officials are urging users of disrupted KDDI mobile phone networks to use other carriers or fixed-line phones to make an emergency call, or go to the nearest fire station.
The Fire and Disaster Management Agency issued the notice on Saturday after major disruptions occurred to KDDI's phone and data communication services across Japan.
Japan's unemployment rate inched higher in May, marking the first rise in four months. Government officials say the uptick may be due to workers quitting in search of better jobs.
The internal affairs ministry says the seasonally adjusted jobless rate was 2.6 percent in May, up 0.1 point from April.
Japanese firms that design and make rechargeable batteries are asking the government for a big increase in financial support to help compete with rivals from China and South Korea.
Representatives from about 100 firms put their request to the government at a general meeting on Thursday.
Japanese researchers say they have successfully filmed a giant rare deep-sea fish in the Pacific called the "yokozuna iwashi."
The fish was discovered some years ago in Suruga Bay, central Japan, and identified as a new species last year. Only six have been captured or photographed so far, and little is known about it.