11/22/2014 05:05 EST | Updated 01/22/2015 05:59 EST

Kinder Morgan Pipeline Protest Sees More People Arrested After Crossing Police Line

VANCOUVER - About a dozen more people have been arrested at a pipeline protest in a conservation area in Vancouver.

The protesters were taken away Saturday after crossing a police line on Burnaby Mountain, where crews have been conducting survey work for the proposed Trans Mountain pipeline expansion.

Arrests began at the site Thursday, four days after a court deadline passed for activists to leave the survey site.

Kinder Morgan, the company that's proposing the expansion, says drilling has begun at one of two, 250-metre-deep holes and that work trucks, crews and their equipment will continue to move onto the mountain throughout the weekend.

If approved, the expanded pipeline could ship almost 900,000 barrels a day of crude from Alberta to the B.C. coast.

Opponents argue the increased quantity of oil being transported would increase the risk of a devastating spill.

(CKNW, 1130 News)

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Photo gallery Kinder Morgan Pipeline Protest, Fall 2014 See Gallery