An off-duty NYPD officer was found dead in his Long Island home, police sources said.

The 44-year-old officer, who had 16 years on the job, was discovered by his wife in their Suffolk County residence, the sources said.

Preliminary indications are that the officer’s death was “accidental,” and neither suicide nor homicide is suspected, the sources said.

The officer was currently assigned to the Upper West Side in Manhattan.

The NYPD did not immediately offer comment.