Nassau County has issued an advisory against swimming at four South Shore beaches because of concerns over increased bacteria levels, health officials said.

Biltmore Beach in Massapequa, which had been closed Wednesday, remained closed until further notice due to elevated bacterial levels, officials said.

The advisory was expected be lifted at 6 a.m. Friday, unless there is heavy rainfall or water samples reveal elevated bacterial levels.

The following beaches are under the advisory: 

  • Hewlett Point Beach — East Rockaway
  • Island Park Beach — Island Park
  • Merrick Estates Civic Association — Merrick
  • Philip B. Healey Beach — Massapequa

For up-to-date information on Nassau beach openings and closings, call 516-227-9717.

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Updated now LI Catholic group's challenge to diocese ... Out East: Jamesport Country Store ... This week's weather outlook ... Get the latest news and more great videos at NewsdayTV

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