Shuang Qing Feng, Eileen Zelis Aria, Jaremy Vazquez, Daniel Kepner, and Dennis Kehler killed in chain-reaction crash on Pennsylvania Turnpike near Mount Pleasant, Pennsylvania

A loaded bus lost control on a hill along the highway, setting off a chain reaction that involved three tractor-trailers and a passenger car. The crash shut down the Pennsylvania Turnpike for a 90-mile stretch for most of the day Sunday.

According to Pennsylvania State Police, the bus was traveling downhill on a curve, careened up an embankment and rolled over. Two tractor-trailers then struck the bus. A third tractor-trailer then crashed into those trucks.