Falling tree injures four at Knoebels campground

(Aug. 17, 2016) -- Wind gusts that topped 50 mph injured four people, one critically and another seriously, at the Knoebels Amusement Resort campground near Elysburg, Pa., at about 4:30 p.m. when an approximately 40-foot top of a tree broke off and came down on a campsite where six people were staying.