More than 150 people were stricken by the heat Monday in Paterson, New Jersey, where hundreds gathered at a local stadium for high school graduation ceremonies. The fire chief declared “a mass casualty incident,

Two outdoor graduation ceremonies in Paterson, New Jersey, held during a dangerous heatwave ended with more than 100 people receiving treatment and some being taken to the hospital, authorities said.

People at Paterson's Hinchliffe Stadium for high school graduations fainted as temperatures reached dangerously high levels, the city's public safety director said.