(LOS ANGELES) — Police said Monday officials are still trying to determine the cause and manner of death of a teenage girl whose body was found in the trunk of a Tesla registered to the singer D4vd earlier this month.

The body was discovered in the trunk of the Tesla on Sept. 8, two days after it had been towed from a Los Angeles street, police sources said.

The Los Angeles County Medical Examiner identified the female body as 15-year-old Celeste Rivas Hernandez. The teen, from Lake Elsinore in Riverside County, was reported missing last year, investigators confirmed to ABC News.

In an update on the investigation, the Los Angeles Police Department said Monday that its Robbery-Homicide Division (RHD) has been “diligently investigating” Rivas Hernandez’s death over the past several weeks.

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