Tokyo 2020 organisers say they will be ready to host the Olympic Games despite the city declaring a state of emergency over COVID-19.
The rescheduled Games are set to take place between July 23 and August 8.
Japanese Prime Minister Yoshihide Suga said there was a sense of crisis as he announced emergency COVID-19 plans.
Tokyo recorded 2,447 new COVID-19 cases on Thursday and the latest measures primarily target restaurants and bars, which will be asked to stop serving alcohol by 7pm local time and close an hour later.
Costs for the Games have increased by £2.1bn because of measures needed to prevent the spread of coronavirus.
Report shows that majority of the Japanese general public oppose holding the Games in 2021, favouring a further delay or outright cancellation of the event.