Five beaches in Suffolk County were closed to swimming Tuesday because of bacteria-contaminated water, health officials said.

Amityville Village Beach, Tanner Park Beach and Venetian Shores Beach in Babylon Town, as well as West Islip Beach and Islip Town Beach/Lake Ronkonkoma have bacterial levels that exceed acceptable standards, officials said Tuesday.

Copiague Harbor Beach in Babylon also remains closed for the same reason.

Swimming in bacteria-contaminated water can result in gastrointestinal illness, as well as infections of the eyes, ears, nose and throat, Dr. James Tomarken, Suffolk County commissioner of health, said in a news release.

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Beaches will reopen after testing shows bacteria counts have dropped to acceptable levels.

For the latest information on affected beaches in Suffolk, call the bathing beach hotline at 631-852-5822 or visit the Suffolk County government website.