Editor’s note: This story has been updated with the victims’ names and more details on the shooting. An article with more information about the victims and accounts from witnesses is available here .

A man and a woman in a car were shot to death in Central Long Beach Saturday evening, according to authorities. Police are still searching for whoever killed them and are trying to determine a motive for the slayings.

The victims were identified Sunday as Long Beach residents Sandra Coleman, 56, and Don Sims, 55.

The shooting happened around 5:45 p.m. near 17th Street and Alamitos Avenue, Long Beach police spokeswoman Nancy Pratt said.

When police got to the scene, they found a wounded Sims and Coleman inside the car stopped in the middle of the street, according to Pratt.

Coleman, who was identified as the driver of the car, was determined dead at the scene, Pratt said. Sims, who was the front passenger, was transported to a local hospital where he was pronounced deceased.

Police are investigating the incident as gang-related. No suspect information is available and the motive is still under investigation.

Investigators urged anyone with details to contact homicide detectives Mark Mattia and Don Collier at 562-570-7244. Anonymous tips can be submitted to Crime Stoppers at 800-222-TIPS or crimestoppers.org.