OLYMPIA, Wash. -- At least three more people were arrested Sunday when protesters took to the streets again.

A dozen or so people were arrested on Saturday in Olympia as demonstrators rallied to protest military-cargo shipments at the port in Washington's state capital.

The arrests by police come one day after protesters were able to halt two trucks from removing military equipment that had been unloaded from a ship coming from Iraq. The equipment was bound for Fort Lewis, an Army base about 15 miles northeast of Olympia that is home to Stryker combat brigades.

Protesters on foot blocked traffic downtown about noon today by jumping in front of large trucks towing cargo containers carrying military equipment.

Olympia police in riot gear moved in quickly, spraying pepper spray in the faces of the protesters, pushing them with their batons and dragging them away from the road.

At least three people were arrested at that location, and at least nine more were arrested when they tried to block an entrance to Interstate 5 as scores of protesters deployed to several different locations.

The demonstrators have been protesting the use of the port by the USNS Brittin, which landed at the port Monday to unload equipment that was used in Iraq by the 3rd Brigade, 2nd Infantry Division (Stryker Brigade Combat Team).