Were called here to a building of concrete fell, hitting the light post and tree, bending both down on to a school bus that has since been removed. Go, we spoke with the moved. Driver of the bus, who says he feels lucky. He told us he had dropped off students from verne field tq ementary in the School District at the National Constitution center. While sitting in traffic, the concrete started falling. Four or five, six windows were busted in, frames were sticking inside. Glass all over the seats, and stones i had stones flying across the steering wheel, while i was getting out of the way. Reporter now, the driver also told us another bus is heading here from harleysville to pick up those students. In the meantime, ive been talking to investigators here on the scene for the past hour and so. Cedar Mill Services is handling the demolition. Several agencies are investigating. They will be speaking with them, and inspections, office of nses Emergency Management, and just to your right here