Vancouver
No one knows exactly when the first bomb went off under the EnCana firm's gas pipeline in a remote part of British Columbia.
It wasn't until a hunter in the northeastern part of the province, near the town of Dawson Creek, spotted the 2-metre-deep crater under the pipeline on October 12 that it was known that an explosion had even occurred.
It was when the second attack took place nearby late on Wednesday or early on Thursday that everyone sat up to take notice.
'We're not characterising this as terrorism, but we're characterising it as a targeted attack,' said Royal Canadian Mounted Police Sergeant Tim Shields. 'The RCMP is taking this incident very seriously and is dedicating investigators from a number of specialised units, including Inset,' the Integrated National Security Enforcement Team.
The damaged pipeline carries sour gas, which contains hydrogen sulfide, which can be fatal when inhaled. While the first blast didn't damage the pipeline, the second explosion caused a rupture and a leak, which was quickly contained by technicians.