Just before 8:00 a.m. on Monday, police responded to Greenfields Drive in Fredericton after a child collapsed on the side walk.
Paramedics took the boy to the Dr. Everett Chalmers Hospital where is was declared deceased.
An autopsy was conducted this morning in Saint John. It indicated nine-year-old Garrett Blois died from a sudden cardiac event.
Out of courtesy for the family, no more information will be released at this time.