An 8-year-old boy was struck and killed by a tree branch that fell while he was attending a summer camp at King Gillette Ranch in Calabasas on Wednesday afternoon, July 9, authorities said. Authorities responded just after 2:50 p.m. to the ranch in the Santa Monica Mountains. Camp staffers were giving aid to several people.

People reported hearing a loud crack before a massive branch, estimated to weigh several hundred pounds, came tumbling down from an old oak tree, authorities said.

A large oak tree limb fell on a group of kids attending summer camp, fatally injuring one young child, officials said.