"Mass casualty incident" declared at Pennsylvania Big Boy train stop after dozens treated for heat illnesses

READING, Pa. (WHTM) - A "mass casualty incident" was declared at the Berks County stop for the Union Pacific’s Big Boy No. 4014 locomotive's nationwide tour. The Muhlenberg Township Police Department says thousands of spectators waited in 106-degree weather for the train at the Reading & Blue Mountain Railroad Outer Station in Reading on Thursday. [...]