MYRTLE BEACH — Family members say a 12-year-old Boy Scout who died at a camp event in Williamsburg County had collapsed in gym class earlier in the week.

Williamsburg County Coroner Harrison McKnight said Cameron Ahalt of Pawleys Island collapsed and died after a race Saturday at the Fall Boy Scout Camporee in Hemingway.

McKnight told The Sun News of Myrtle Beach an autopsy at the Medical University of South Carolina showed no apparent cause of death.

The boy's father, Sean Ahalt, said Tuesday his son apparently died from a heart defect that couldn't be detected. Ahalt said his son collapsed in gym class at Waccamaw Middle School on Nov. 5 and was taken to Waccamaw Community Hospital.

Ahalt said doctors released him to return to return to school and resume a normal schedule by Friday.