BANGOR – Authorities in Maine say the death of a man found in an apartment has been ruled a homicide.

The State Medical Examiner’s Office announced Thursday that the death of 51-year-old Israel Lewis was homicide. Authorities would not say how the Bangor man was killed.

Lewis’ body was found Wednesday morning. Police say an unidentified person had attempted to reach Lewis by phone before going to Lewis’ apartment.

An investigation continues.