Three more positive coronavirus cases have been confirmed in Suffolk County, bringing the total in the county to four cases.

County Executive Steve Bellone said the first patient is a Town of Brookhaven resident in his early 20s. Bellone said the patient is in isolation at Stony Brook University Medical Center.

The second patient is a Southold resident in her early 20s who is under home isolation.

The third patient is in his 80s and is in isolation at St. Catherine's Hospital.

Bellone said health officials are investigating the patients' contacts, and it is believed the cases were contracted through community transmission.

There are currently 19 confirmed cases in Nassau County.