A woman is in custody for the fatal stabbing of a postal worker following a dispute over sandwiches at a Manhattan deli on Thursday, law enforcement sources told the Daily News.

The woman accused of stabbing a postal worker to death over a spot in line at a Harlem deli has a long history of knife violence — and once threatened “to cut” one of her previous victims.

A U.S. Postal Service worker was stabbed to death while at a deli in Harlem, according to police. The deadly incident occurred just after 2 p.m. Thursday at the deli on Lenox Avenue near 118th Street, officials said. The victim, a 36-year-old man, was stabbed in the stomach, according to police.

He was apprehended by the mayor's security detail and charged with attempted burglary. A spokesperson for Adams said the mayor was not home at the time of the pre-dawn incident. It wasn’t immediately clear if anything had been taken from the property.

The brother of a man who was shoved onto subway tracks ahead of an incoming train in New York City on New Year’s Eve says he's expected to make a full recovery

A man who allegedly pushed another man onto train tracks at a New York City subway station faced a judge Wednesday morning.

A man faces attempted murder charges for allegedly pushing another man onto the subway tracks in New York City. Reports say it happened on New Year's Eve at a train station in Chelsea. The victim was reportedly a 45-year-old man who was taken to the hospital and is now stable.