The medical examiner increased the death toll from the most recent heat wave to 8 on Wednesday. An 84-year-old Brooklyn man died from hyperthermia, officials said.
The medical examiner's office previously said a 67-year-old Queens man died on Friday and two Brooklyn women, a 61-year-old and an 82-year-old, died on Saturday. All three deaths were caused by hyperthermia..
Hyperthermia also claimed the life of a 78-year-old Brooklyn man on Friday.
The National Weather Service says the air temperature reached 96 degrees on Friday.
Medical examiner's office spokeswoman Ellen Borakove says all eight victims had underlying medical problems. The names of the victims were not released.
The 9th death occurred earlier in the month, officials said. A 57-year-old Staten Island man on July 8 when the temperature in the city reached 89 degrees.