A third person who was injured in the fire on Jacques Road off Mountain View Avenue in Kingston on October 16, has died.
15-year old, Andrew Dennis, died on Sunday night.
Forty-eight-year-old Everett Austin and 14-year-old Sanjay Williams also died earlier this month.
All three were injured when a cylinder caught fire and exploded at an illegally-operated gas filling site.
The police report that the persons were illegally filling compressed gas cylinders from a storage tank attached to the back of a truck.
The explosion resulted in five persons being seriously injured and major damage to several properties.
Three units from the Fire Department responded and extinguished the blaze, preventing further injury or damage to property.