Police are making arrests at the Bank of America Plaza where some Occupy Wall Street sympathizers have set up tents.
Police announced shortly before 4 p.m. that protesters had 15 minutes to pack up their tents and leave the plaza area or face arrest.
About 27 protesters linked arms and stood in a circle with police in riot gear nearby. So far eight people have been taken into custody without incident.
The march, which has been peaceful, began shortly after noon Thursday at the Occupy LA encampment at City Hall.
Three people were arrested earlier when the crowd spilled off the sidewalk and into the street.