Health officials on Tuesday reported seven more deaths from swine flu, bringing the city's total to 23, the most in the nation.

The Department of Health didn't identify the victims or say when they died in an update posted on its Web site. It said the victims were between the ages of 25 and 64 and most had been hospitalized late last month.

The health department's last update was just four days ago, when it added one more death to make the total 16. That death involved a person in his or her 40s.

Nassau County, on Long Island, also reported one death from swine flu on Tuesday, a woman in her 20s who had given birth 10 days earlier.

New York City health officials say at least 16 of the people who have died had other health conditions. The city also said more than 1,000 cases of swine flu have been confirmed, but that doesn't reflect the overall incidence of swine flu. City health officials estimate 253,000 people had the swine flu in Queens and Brooklyn alone during May.

The city leads the country in swine flu deaths, according to the national Centers for Disease Control and Prevention. The outbreak began in April in Queens.