The protesters totaled about 30 people and no arrests were made, Oakland
police spokeswoman Johnna Watson said. A handful
of police officers will be posted at the Port throughout the day to monitor the situation, Watson said.
Less than a half-dozen protesters in the group remained on scene about 8:20 a.m. but dispersed shortly after.
The Zim Integrated Shipping Lines vessel Piraeus, right, sits idle at the Port of Oakland on Tuesday, Aug. 19, 2014.