A man's body was discovered inside a burning home early this morning in Otterburn Park on Montreal's South Shore. 

The fire started at around 4:45 a.m. at a single-family home on Comtois Street. 

A neighbour called the fire department after seeing flames inside the house.

The house belonged to a 59-year-old man who lived alone, according to his sister who was at the scene and spoke with CBC News. 

She said her brother barely survived a workplace explosion in 1990 in which he suffered burns to 80 per cent of his body. 

The house was gutted by the fire and firefighters were working to secure the building so the body could be removed. 

Fire officials said it is too early to suggest what might have caused the fire.