VISTA — An autopsy performed Wednesday on a person found dead in a vacant lot in Vista identified a brain bleed that may have resulted from head trauma, prompting a homicide investigation.

Deputies assigned to the Vista Sheriff’s Station responded Monday to the 1200 block of Hacienda Drive, near state Route 78, where they discovered the victim with no obvious signs of trauma at the scene, according to the San Diego County Sheriff’s Office.

Personnel from the San Diego County Medical Examiner’s Office responded to the location and took custody of the decedent.

The autopsy revealed the victim sustained a brain bleed that could have resulted from trauma to the head.

“Based on these findings, the Sheriff’s Homicide Unit responded and has assumed responsibility for the investigation,” the sheriff’s office said in a statement.

Anyone with information about the case is urged to call the Sheriff’s Homicide Unit at 858-285-6330. Calls made after hours should be directed to 858-868-3200. Tipsters who prefer to remain anonymous can call Crime Stoppers at 888-580-8477.