Update, 3:20 p.m.: At about 2:30 p.m. police arrested eight demonstrators that had chained themselves to the administration building or were supporting those chained up.

The arrests were peaceful and the demonstrators have been taken to Pima county jail to await pre-trial services.

Update, 2:20 p.m.: The perimeter of the Administration building is marked off with police tape as the area is now being considered a crime scene.

The six members of Student Against Sweatshops participating in the lock-down still block-off the four main entrances to the building. Once the students are removed from the building they may be arrested on suspicion of criminal trespassing.

About 20 Tucson Police Department motorcycle officers along with another 20 UAPD officers are standing behind the tape, keeping all passers-by away from the demonstrators and the building.

Some members of UAPD have said that it may be several hours until this conflict is resolved.

UA President Peter Likins still not met with any of the demonstrators.

Update, 12:08 p.m.: Student demonstrators and local police are at a standoff this afternoon since the protestors chained themselves to the Administration building.

About 30 members of the University and Tucson police departments are standing by, awaiting word from UA President Peter Likins as to whether he wants the demonstrators removed.

Likins has not met today with Students Against Sweatshops the group which chained themselves to the four major entrances to the building.

Members of Students Against Sweatshops have barricaded the Administration building, partially shutting down activity to the bottom floors.

With U locks and chains, the demonstrators have locked themselves to all the buildings main entrances in an effort to keep University of Arizona employees who work in the building, including university President Peter Likins, from entering.

At about 7:30 a.m. Likins arrived and entered the building through a smaller entrance on the west side of the building. Several other employees have gone into the building through that entrance that is now being maintained by officers of the UA police department.

"I will not be coerced by illegal behaviour that instructs other as will as faculty and staff from pursuing their lives," Likins stated in a release. "I cannot condone this interference in the orderly affairs of the university."

The demonstration began at about 6:30 a.m. and SAS members said they will not leave until the university withdraws from the Fair Labor Association or they are forcefully removed by police.

UA police department officers are on the scene, have attempted to remove the demonstrators from the south, main entrance of the building and are waiting for further instruction from Likins.

Click here for photos from the SAS protest