A female worker [city carrier assistant]at the Manor Road Post Office in Castleton Corners beat a supervisor, cursing and threatening to kill the woman during a heated dispute Monday, police allege.

Kenya Stanislas, 29, of Moonlight Court, Castleton Corners, was arrested shortly after the 10:10 a.m. incident, said cops.

According to court papers and a law enforcement source, Ms. Stanislas and the 36-year-old victim became embroiled in a dispute in the parking lot. The genesis of the clash was not immediately clear, although Ms. Stanislas allegedly became incensed.

“White devil [expletive], I’ll kill you,” the source quoted Ms. Stanislas as yelling at the victim.

The suspect punched the woman “multiple times” in the head, causing bruising and swelling, said court documents.

Not finished, she went to her car to retrieve an aluminum baseball bat and tried to approach the victim, said court papers.

via Gone postal: Staten Island mail worker allegedly attacks, threatens to kill supervisor