A natural gas fire near Otterburne could keep burning for some time, officials say.
A loud explosion at 1:05 a.m. was followed by a large fireball erupting in the RM of De Salaberry.
The fire is coming from a natural gas pipeline.
That's part of the problem with fighting the blaze at this point, said RCMP spokesperson Tara Seel.
Trans-Canada Pipeline, which owns the line, is having to vent off gas in an attempt to control the blaze.
It was originally expected to be out by 2 a.m.
Now, Seel said it's impossible to guess when that might be possible.
No one was injured in the explosion, but five nearby houses had to be evacuated. Those people will be asked to stay away from their homes until the site is deemed safe.
Seel said the blaze is getting smaller.
RCMP, the Office of the Fire Commissioner and Trans-Canada Pipeline are investigating the cause of the explosion — including whether it started by accident or was criminal in nature