MISSOULA, Mont. (AP) — Protesters say they stopped the movement of a large load of oilfield equipment for about 20 minutes in Missoula early Friday.

Police arrested Carol Marsh, Debbie Florence and Gail Gilman on suspicion of disorderly conduct for sitting in the road to block the megaload's progress.

Northern Rockies Rising Tide said its members along with members of Indian Peoples Action and the Blue Skies Campaign protested the load as it traveled through Missoula. The load was able to finish its route and stop at Bonner.

The load weighs about 750,000 pounds. It has traveled through Oregon, southern Idaho and will travel through northwestern Montana before continuing on to Alberta, Canada.

It is the last of three loads that Omega Morgan was hauling from the Port of Umatilla, Ore., to Canada.