BOSTON, Mass. (WHDH) -- Boston Police are investigating a deadly drive-by shooting on Shawmut Avenue in the South End.

Police said a silver BMW were stopped at a traffic light when an SUV pulled up alongside of it and opened fire. Five people were driving in that car when shots were fired around 2:30a.m. early Monday morning at the intersection of Shawmut Avenue, Tremont Street and Herald Street.

Two people in the front and passenger seat were killed. A third person in the car was also shot and sustained non-life-threatening injuries. The two people who were not hit fled the scene.

“In addition to the vehicle there were two other individuals in the victim's vehicle who fled the scene and left before police arrival. We want to make sure they are okay and we obviously want to talk to them about what they saw and information relative to the investigation,” said Supt. John Linskey of the Boston Police Department.

Police put out an alert for a gold or silver car with Rhode Island license plates that was seen fleeing the scene. A man was said to be driving the car with a woman in the passenger seat.

Detectives and investigators have been on the scene since around 2:30 a.m. They’ve spoken with two people who may have witnessed a portion of the shooting, or showed up in the moments the shooting happened.

Police are asking anyone with information to come forward.

Stay with 7NEWS and WHDH.com for updates to this developing story. If you have information related to the story, please e-mail newstips@whdh.com .