so, anne makovevec is here. >> reporter: things got messy. ucla had to cancel classes the early morning violence calmed down. as you can see here, tents remain. law enforcement officers were stationed throughout the campus today. the school's library will not reopen until monday and royce hall, that was vandalized closed through friday. midterms, postponed. >> you want to go to class and use their library and be able to go to the hall, it is a shame. we came here, paying all of this money to learn to use the facilities, use the library and we can't. >> that is a look at some of the overnight clashes that was around the tent city that barricaded themselves in with plywood, counterprotesters moved in and tried to pull them down. we saw fireworks,s in fights, police eventually separated the groups. 15 injuries were reportedip cluing one person who was sent to the hospital. governor newsom released a statement saying the limited law enforcement response was unacceptable. the right to free speech does not go to violence and lawlessness on campus.