Police went to the fourth-floor apartment at the corner of Arlington Avenue and Harmon Street on a welfare check shortly before 8:30 p.m. Saturday, Hudson County Prosecutor Esther Suarez said.
However, a 53-year-old woman living there barricaded herself in the unit and refused to let them in, the prosecutor said.
About an hour into the standoff, officers detected what was described as a foul odor, responders said.
A hostage negotiator was requested, they said.
It took roughly two hours before the tenant finally let them in shortly before 11:30, Suarez said. She was taken into custody after police found the female corpse.
A Regional Medical Examiner was conducting an autopsy to help authorities determine how she died, the prosecutor said.
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