(CNN) As Fire Chief John Alston Jr. spoke to reporters in New Haven, Connecticut, about a spate of drug overdoses on Wednesday, he heard shouting coming from behind him.

"We're getting another call of a person," Alston said.

He quickly helped coordinate the response, and then returned to the microphone.

That scene occurred the same day that 76 people were believed to have overdosed on some form of K2, or synthetic marijuana, officials in New Haven said. Officials responded to 19 additional reports of overdoses on Thursday, bringing the total to 95 cases, according to Rick Fontana, New Haven Emergency Operations Director.

Almost all of the overdoses occurred in New Haven Green, a large park in the city's downtown. The park, home to a historical burial ground, gets lots of foot traffic and is family-friendly with "elm trees, lawn and fountains. There's even three churches inside the park," David Hartman, a New Haven Police spokesman told CNN.

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