Police in Bexar County, Texas, say a 7-year-old boy died Friday after his little brother buried him alive in a sand pit, CBS Houston affiliate KABB-TV reports.
Bexar County Sheriff spokesman Paul Berry said younger boy, 5-year-old Logan McDaniel, ran to his father for help after he couldn't get his brother, Wyatt, out of the four-foot sand pit at his family's horse farm.
The father, Charles McDaniel, pulled his son out of the pit immediately and gave him CPR. Wyatt died later at University Hospital after going into cardiac arrest, KABB-TV reports.
"No one actually saw it," Berry told the San Antonio Express-News. "Clearly there was an accident with sand. And it appeared as if he suffocated, but that needs to be determined by the medical examiner."
A family friend told the paper the brothers were "best friends" and "inseparable," and worried how Logan would handle the incident.
The Bexar County Sheriff's Office and Child Protective Services are investigating the incident. A vigil was held for Wyatt at Wilderness Oak Elementary School on Sunday.