A severe storm swept through a crowded amusement park in West Mifflin, killing one person and injuring nearly 50, including many children, authorities said.
A roof over a ride called the Whip collapsed or partially collapsed, crushing one person, said Mary Lou Rosemeyer, a spokeswoman for Kennywood Park near Pittsburgh. The storm, with 80-mph winds, felled many trees in the park.
"The wind was incredible and there was an extensive amount of damage," Rosemeyer said.
At least 47 people were taken to hospitals, officials said.
Most of the injured were hit by hail or wind-driven debris and were not under the roof that collapsed, Rosemeyer said.