Japan has placed Tokyo under a state of emergency that will last throughout the Olympics amid fears that an ongoing Covid-19 surge will multiply during the Games.
Japanese Prime Minister Yoshihide Suga said the state of emergency would go into effect on Monday and last through until August 22.
This means the Olympics, opening on July 23 and running through until August 8, will be held entirely under emergency measures.
Mr Suga said the state of emergency was needed to “prevent the resurgence of the future spread of cases across the country”.
The announcement came as International Olympic Committee (IOC) president Thomas Bach arrived in the city two weeks before the postponed Games are to open.
Mr Bach largely avoided cameras at Tokyo’s Haneda Airport and went to the International Olympic Committee’s Games headquarters in Tokyo, a five-star hotel in the centre of the city.
The main focus of the emergency is a request for bars, restaurants and karaoke parlours serving alcohol to close.
A ban on serving alcohol is a key step to tone down Olympic-related festivities and keep people from drinking and partying.
Tokyo residents are expected to face stay-home requests and to watch the Games on TV from home.
“How to stop people enjoying the Olympics from going out for drinks is a main issue,” health minister Norihisa Tamura said.
The present state of emergency ends on Sunday.
Tokyo reported 920 new cases on Wednesday, up from 714 a week earlier.
It was the 18th straight day of week-on-week increases, and was the highest total since 1,010 were reported on May 13.
Fans from abroad were banned months ago from attending the Olympics.
But just two weeks ago, organisers and the IOC decided to allow venues to be filled to 50% of capacity but crowds not to exceed 10,000.
The state of emergency will force them to change plans again, with a decision probably coming later on Thursday.
The soaring cases are likely to mean that venues will be without any spectators, although sponsors and others may have access.
The no-fan atmosphere could include the opening ceremony at the National Stadium.
The increase in infections has also forced the Tokyo city government to pull the Olympic torch relay off capital streets, allowing it to run only on remote islands off the Tokyo coast.
It is unclear how the torch will enter the stadium for the opening ceremony.
“The infections are in their expansion phase and everyone in this country must firmly understand the seriousness of it,” Dr Shigeru Omi, a top government medical adviser, said.
He urged authorities to quickly take tough measures ahead of the Olympics, with summer holidays approaching.
Dr Omi has repeatedly called for a ban on spectators, and has said it is “abnormal” to hold the Olympics during a pandemic.
Separately, a government Covid-19 advisory panel met on Wednesday and expressed concerns about the ongoing resurgence of the infections.
“Two-thirds of the infections in the capital region are from Tokyo, and our concern is the spread of the infections to neighbouring areas,” said Ryuji Wakita, director-general of the National Institute of Infectious Diseases.
The Olympics are pushing ahead against most medical advice, partially because the postponement stalled the IOC’s income flow.
It gets almost 75% of its income from selling broadcast rights, and estimates suggest it would lose three billion dollars to four billion dollars if the Olympics were cancelled.
About 11,000 Olympians and 4,400 Paralympians are expected to enter Japan, with tens of thousands of officials, judges, administrators, sponsors, broadcasters and media also entering.
The IOC says more than 80% of residents of the Olympic Village will be vaccinated.
Nationwide, Japan has had about 810,000 cases and nearly 14,900 deaths.
Only 15% of Japanese are fully vaccinated, still low compared with 47.4% in the United States and almost 50% in Britain.