Six Nassau County beaches were closed to bathing on Monday due to storm water runoff, according to the county's health department.

The beaches -- Laurel Hollow Beach, Morgan Beach, North Hempstead Beach Park, Sea Cliff Village Beach, Tappen Beach and Theodore Roosevelt Beach -- are all on the North Shore and were closed as a precaution after the weekend's heavy rainfall, the department said.

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Storm water runoff can lead to higher bacteria levels in the water, according to the department.

Updated information about beach closures is available on the department's recorded hotline, 516-227-9700.