A 21-year-old woman was shot dead in front of her boyfriend on a Brooklyn street, cops said.

Sabrina Moreno, of Sunset Park was walking with her beau on Van Siclen Avenue near Pitkin Avenue in East New York around 6:55 p.m. Friday when a man emerged and started firing at the pair, authorities said.

Moreno was struck in the neck, according to police. She was rushed to Brookdale Hospital, where she was pronounced dead.

Her boyfriend was uninjured.

Police are investigating whether the shooter may have been the Moreno’s ex-boyfriend.