KNTV reports that Berkeley police arrested five adults and one juvenile last night and the California Highway Patrol apprehended an additional 13.
Hundreds of demonstrators marched through the streets of Berkeley Tuesday night, briefly blocking traffic on a highway and delaying metro and train services.
Berkeley Mayor Tom Bates canceled a scheduled City Council meeting after threats to disrupt it.
The San Francisco Chronicle reports that the protests became sporadically destructive over several hours.