Four people were shot during an apparent drive-by shooting in Brooklyn Thursday night, sources said.

A group of people were outside of an apartment building in Sunset Park when the suspect opened fire at about 8:20 p.m. — striking three men and one woman, according to law enforcement sources.

The victims were all expected to survive the shooting.

A 24-year-old man was struck in the leg, a 37-year-old man was shot in the arm, and a 42-year-old man was shot in his leg, police said.

The three were transported to NYU Langone Hospital.

A 23-year-old woman was also shot in her right leg and was transported to Maimonides Medical Center.

All suffered non-life threatening injuries, police said. No arrests were made Thursday night.