STOCKTON (CBS13) – Officers are investigating a shooting that left three people dead in Stockton early Friday morning.

The incident happened around midnight near F Street and Finland Avenue.

Stockton police say all three victims were found inside a vehicle in the area.

A 19-year-old man and an 18-year-old woman were pronounced dead at the scene, officers say. Another man, age 18, was transported to a hospital in critical condition; he later died at the hospital from his injuries, police say.

Stockton Mayor Michael Tubbs released a statement on Facebook Friday evening calling the incident a “heartbreaking tragedy in Stockton.”

Tubbs sent his condolences to the victims families, identifying the victims as 18-year-old Remilio Castillo Rivera, and siblings 18-year-old Tiffany Connary and 19-year-old David Connary.

Investigators say the incident doesn’t appear to be a random act. Investigators also believe there is a “possible gang component” to the incident.