(From the AP) Authorities are awaiting an autopsy report to determine if a spider bite contributed to the death of a 13-year-old Pomona boy. Pomona police say paramedics were called to the boy’s home Sunday afternoon for a possible knee injury.

The boy was found in cardiac arrest when emergency personnel arrived. He was pronounced dead hours later at a hospital after efforts to revive him failed.

Police say an initial investigation found that the teen may have been bitten by a spider a week or more before his death and had complained of knee pain. They say there was no evidence of traumatic injury to the boy’s body.