Officials said Monday night there has been an uptick in Legionnaires' disease cases in Central Harlem.The New York City Department of Health said there are now 90 confirmed cases, including three deaths.

The city was already proposed new rules for cooling towers, which the health department says was the source of the outbreak. CBS News New York's Dick Brennan reports.

Seven new cases of Legionnaires’ have been reported since Friday in the Legionnaires’ outbreak, which has so far sickened 90 people and killed three. There are currently 17 people hospitalized from Legionnaires’, a severe form of pneumonia, down from more than 20 last week, according to city data.