San Diego sheriff's deputies were investigating the death of a 15-year-old boy found unresponsive and not breathing in Fallbrook, a sergeant is reporting.
Deputies responded with paramedics to the 1200 block of Old Stage Road at 7:37 p.m. Saturday, said Sgt. Patrick Yates of the Fallbrook Sheriff's Station.
They began CPR upon arrival, but the boy was pronounced dead at about 8:13 p.m., Yates said.
"The circumstances of the juvenile's death are unknown, pending the results of the Medical Examiner's Office examination," he said.
The boy's name was not released pending notification of his family, Yates said.