More people, apparently now including union sabbatical officers (belatedly) and supportive lecturers are outside the room being blocked from entering by security. Security are being heavy handed: three guards and one police officer (PC8532) earlier grabbed one student by force and tried to drag him away and arrest him (after others showed solidarity and de-arrested him they said "we will see you later").
Students are determined to hold the space -- we will set up a true "free university" with workshops, talks, films etc. to show them how it's done. We are currently drawing up a full statement. The occupation is entirely non-violent, and we will not obstruct lectures (there are no lectures in the room today but wil be tomorrow) -- but we will not let them take our university off us.