A pregnant woman was shot five times and her unborn baby was killed after a drive-by shooting in Brooklyn Monday night that injured four other people, police sources tell NBC 4 New York.

The four-months pregnant woman, 19, was standing in front of a housing project on Dwight Street with two other women and two men when someone in a passing SUV opened fire at them, the sources say.

-David Torres

-David Torres

The pregnant woman was critically injured in the shooting, according to the police sources. One of her companions, a 20-year-old man, was hit seven times in the body, authorities said.

Another 19-year-old woman was also shot five times, while the remaining two victims were shot in the legs. All five victims were taken to nearby hospitals.

The SUV drove off after the shooting.

Police sources say the violence is thought to stem from a rivalry between residents of two housing projects in the neighborhood. Police are looking for two suspects.

The drive-by comes after another shooting on Sunday.

Three died and 16 were wounded in seven separate shootings across the city over the weekend, including one shooting in which nine people were shot during a backyard party in East New York.