BOISE, Idaho (AP) — A giant shipment of oil refinery equipment trying to make its way to Canada through a scenic northern Idaho river corridor has resumed its journey, despite protesters who have gathered for a second night. The Lewiston Tribune reports that the load started moving slowly late Tuesday night.

Idaho State Police, Nez Perce County sheriff's deputies and Nez Perce Tribal Police urged protesters to stay off U.S. Highway 12. The Tribune says law enforcement officers have made at least two new arrests. The first of two planned megaloads pulled out of a Washington port late Monday and was halted by a legion of protesters just outside of Lewiston.

Authorities said 20 protesters — including eight members of the Nez Perce Tribe — were arrested, jailed and charged with misdemeanors for disturbing the peace. The load is bound for an oil sands project in Alberta, Canada.