By Alan Duke, CNN
November 20, 2009 3:00 p.m. EST
Los Angeles, California (CNN) -- Students were occupying buildings Friday on campuses of the University of California system in protest of a 32 percent tuition hike.
Students took over portions of buildings on campuses in Los Angeles, Berkeley, Santa Cruz and Davis late Thursday, and two remain occupied Friday morning.
Student organizers said they would escalate their protests after the system's regents approved the tuition hike during a meeting Thursday on the UCLA campus.