Three individuals, including a two children, were injured following an explosion at a campground outside of Perth on July 4.
OPP were called to assist local fire departments just before 10:30 p.m. on Saturday.
The incident occurred at a campground on Christie Lake North Shore Road and was reported as the explosion of a buried propane cylinder at a campfire.
On July 8, OPP clarified that a seven-year-old boy is still in hospital being treated for serious burns, while a six-year-old girl was transported to hospital and treated for minor burns. A 42-year-old man was also treated in hospital for minor injuries.
Officers attended, along with paramedics and air ambulance transportation.
An investigation into the cause of the explosion is still ongoing.
Anyone with information is asked to call police.