Suffolk County District Attorney Timothy Sini in Manhattan on May...

Suffolk County District Attorney Timothy Sini in Manhattan on May 10. Credit: Charles Eckert

Two Nassau police officers have been arrested following a grand jury investigation, Suffolk County District Attorney Timothy Sini said in a news release Tuesday.

Sini, in a prepared statement, said his office “has initiated a grand jury investigation, which has resulted in the arrest of two Nassau County Police officers.”

He declined to elaborate on the nature of the grand jury investigation.

Sini did not identify the officers, saying only that his probe is ongoing and that the Nassau County Police Department is cooperating.

The attorney for one of the officers, Mark Alter, of Garden City, said in a statement his client “will enter a not guilty plea at his arraignment and he looks forward to being vindicated through the court process.”

The other officer is represented by Brian Griffin, of Garden City, who said his client is a “well-regarded and highly respected police officer having served and protected the residents of both New York City and Nassau County.”

Griffin added that the officer “will enter a not guilty plea and we will vigorously litigate this matter.”

Det. Lt. Richard LeBrun, a police department spokesman, declined to comment on the officers’ arrest and their status with the police department.

Nassau Police Benevolent Association President James McDermott also declined to comment on the officers’ arrest.

— With Michael O’Keeffe

The test represents the latest effort to combat Lyme, the most common tick-borne disease in the United States. NewsdayTV's Ken Buffa spoke with local experts on what you can do to prevent this disease. Credit: Newsday Studios; File Footage

'You have to check your entire body' The test represents the latest effort to combat Lyme, the most common tick-borne disease in the United States. NewsdayTV's Ken Buffa spoke with local experts on what you can do to prevent this disease.

The test represents the latest effort to combat Lyme, the most common tick-borne disease in the United States. NewsdayTV's Ken Buffa spoke with local experts on what you can do to prevent this disease. Credit: Newsday Studios; File Footage

'You have to check your entire body' The test represents the latest effort to combat Lyme, the most common tick-borne disease in the United States. NewsdayTV's Ken Buffa spoke with local experts on what you can do to prevent this disease.

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