San Diego County Sheriff's Department
A San Diego County Sheriff’s Department car. Photo credit: KPBS

Homicide detectives are working to gather more information about how a 75-year-old man suffered fatal injuries to his head while inside his home, where he later died, authorities said Sunday.

Around 3:30 p.m. Saturday, deputies received a call to assist Cal Fire with an unresponsive man in his home in the 900 block of Tierra Del Sol Road in the Boulevard area.

“When deputies arrived, they were informed by Cal Fire that the 75- year-old male was deceased,” the San Diego County Sheriff’s Department reported in a statement.

“Deputies entered the residence and observed what appeared to be trauma to the victim’s head and requested assistance from the sheriff’s Homicide Unit.”

The motivation and circumstances of the alleged homicide were unclear.

The victim’s identity was not immediately provided.

Authorities urged anyone with information to call the Homicide Unit at (858) 285-6330 or San Diego Crime Stoppers at (888) 580-8477.

City News Service contributed to this report.