Nevím, ve všech zprávách co jsem četl to svádějí na neznámého žháře.
Třeba tady píší něco jiného:
However, the source of the fire was later found to have sparked
high up in the interior of the hollow tree. An old, smoldering lightning strike or friction was considered as causes, WESH-TV, Orlando, reported.
Cliff Frazier, a spokesman with the Division of Forestry said the official cause of the fire is "undetermined" but the investigation is ongoing, the Sentinel said.
[upi.com]