TOKYO, April 7 (CNN) - Japan recorded 252 new cases and seven more deaths from the coronavirus yesterday, the country's health ministry said.

Some 83 of those new cases are from the capital Tokyo.

That brings the total number of cases nationwide to 4,618. Of those, 712 cases were from the Diamond Princess cruise ship that docked in quarantine in February.

The national death toll has reached 91, with 11 deaths from the ship.

State of emergency: Japanese Prime Minister Shinzo Abe announced yesterday that he will declare a state of emergency.

Abe will further explain the declaration at a news conference later today. He added that Japan's state of emergency will differ from Western countries, and will last about a month.

Basic economic activity, like public transportation and supermarkets, will continue to operate, he said.