St-Pierre-Jolys RCMP responded around 1:05 a.m. to what they're calling a "loud explosion."
"I was out for a dog walk and saw a huge fire ball-like burst of light to my south, and knowing that there's a gas relay station at the north end of Ile des Chênes, that seems the most likely candidate," said area resident John Sadoway.
"It lit up the whole sky here for half an hour. The sky's still glowing, actually," said another resident, who only identified himself to CBC as Tyler.
Police have confirmed the fire is coming from the pipeline, but say the burning gas is non-toxic and no injuries are reported.
However, five houses within the vicinity of the fire were evacuated by RCMP and St-Pierre-Jolys Fire Department.
Police and fire officials, along with Trans-Canada Pipeline, are investigating the cause of the explosion.