Protesters came out to counter the rally staged on the capitol's steps by the Traditional Worker Party, a white supremacist, anti-immigration group. Some of those protestors came to battle, carrying wooden batons and wearing plastic shields, according to CBS News.
The reason for the march was to "protest against the globalization and in defense of the right to free expression," according to the group's website.
It appeared that opponents outnumbered the Nazi supporters, according to the Times. The original protest by the Traditional Worker Party group was officially canceled.
By the early afternoon law enforcement was waiting for the counter-protest to disperse. The white supremacist group had already left, according to the Times.
Matthew Heimbach, chairman of the Traditionalist Worker Party, told the Los Angeles Times that his group and the Golden State Skinheads organized the rally. Heimbach said that in the clash, one of their marchers had been stabbed in an artery and six of the "anti-fascists" had also been stabbed.
Sacramento police officer Matt McPhail told CBS News none of the injuries are believed to be life-threatening.
No arrests have been made yet.
This is a developing story, check back for updates.