Fistfights ended up breaking out between members from both groups during morning and afternoon protests, according to the Los Angeles Times.
Berkley police arrested 13 people and seized prohibited items, including a flagpole, knife, stun gun and helmets, according to KABC.
Photos: Tax day protests across the country
Thousands of people across the country took to the streets in protest, some asking the president to release his tax returns, others to show support of the Trump administration.
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