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

Seven graduations that were also supposed to be held at Hinchliffe Stadium were rescheduled due to the sweltering heat.

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.