Another explosion has targeted an EnCana natural gas facility in northeastern British Columbia.

RCMP say EnCana gas line workers discovered a partially destroyed metering shed on Sunday at a wellhead near the community of Tomslake.

Investigators say this appears to be a deliberate attack, similar to three other blasts in October at Encana operations in the same northeastern B.C. area, east of Dawson Creek.

"It appears that a high explosive was used and it caused a very significant amount of damage," said Sgt. Tim Shields.

No one was hurt in the latest incident, no gas leaked and the scene has been secured.

Mounties say members of the media will be permitted to view the blast site today.

No one has been arrested and damage was minimal when bombs were set off at three EnCana pipeline installations over several days beginning on Oct. 11.

The company is considering offering a reward for the capture of the bomber but is waiting to hear from the RCMP if investigators approve of the measure.