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 fainted in the crowd at Paterson's Hinchliffe Stadium as temperatures reached dangerously high levels, the city's public safety director said.

The Paterson Fire Division said about 50 people were treated during the first ceremony at Hinchliffe Stadium, nine of whom were sent to the hospital, reported NBC News and The Guardian. Another 100 people were treated during the second ceremony, seven of whom were sent to the hospital.

The temperature in New York City has reached 100 degrees as the eastern U.S. sweltered under an extreme heat wave.

With the hottest day of the year so far behind us and at least one more more day of sweltering heat before the air cools, several communities in New York set record highs for the day - including Syracuse and Binghamton.