One person has died as a result of a Legionnaires' disease cluster in Manhattan, the city health department confirmed Wednesday evening.

Health officials said the person who died had underlying health conditions, and that 16 cases have been confirmed in Washington Heights.

Seven people remain hospitalized, while seven others have been discharged. Officials said one person was treated without being hospitalized.

Health department officials said the risk of contracting the disease remains "very low," but they expect more cases could be confirmed in the cluster.

Acting Commissioner Oxiris Barbot said the department has sampled the 20 cooling towers in the area. Full testing will not be available for two weeks, but she said the owners of 11 of these towers were ordered to remediate "based on preliminary results and out of an abundance of caution."

A cooling tower at the Sugar Hill development in Washington Heights was identified as the source of another Legionnaires' cluster in July.

Adults who experience flu-like symptoms, fever, cough, or difficulty breathing should seek medical attention immediately.

The disease is not contagious, and is easily treatable when caught early.