Pro-immigrant protestors blocked entrances to City Hall on Friday after the Nutter administration officially announced that it will move ahead with changes to the city's "sanctuary policy." Things quickly became physical.

Police officers attempted to remove the nine protestors creating a human barricade at the two entrances. Among those protesters are undocumented immigrants. After a brief struggle, police and security officials were able to retake one of the entrances from protestors. One entrance remains blocked as of 1 p.m.

New Sanctuary Movement, the interfaith immigrant advocacy group leading the blockade, says they will remain at City Hall's entrance and risk arrest until 5 p.m. this evening.

.@NSMPhilly here to ask @Michael_Nutter his decision on 'sanctuary' policy changes, ready to protest pic.twitter.com/Wb4DDm4MHj

— Max M. Marin (@MaxMMarin) December 11, 2015

Some protestors saying @Michael_Nutter = @realDonaldTrump pic.twitter.com/QnpuaFKP4h

— Max M. Marin (@MaxMMarin) December 11, 2015

A delegation group is in City Hall asking Nutter if he has signed their request to leave executive order as is. pic.twitter.com/83Ko1Y0Has

— Max M. Marin (@MaxMMarin) December 11, 2015

Word is in: Nutter's office told protestors he will move forward with the changes.

— Max M. Marin (@MaxMMarin) December 11, 2015

In act of civil disobedience, this group from @NSMPhilly will risk arrest by blocking City Hall entrance pic.twitter.com/APnOOL7qwt

— Max M. Marin (@MaxMMarin) December 11, 2015

Both of northeast entrances are blocked now. pic.twitter.com/kCtqPQVoXm

— Max M. Marin (@MaxMMarin) December 11, 2015

Protestors being forcefully removed, ask if they're being detained pic.twitter.com/lthRWIYAFl

— Max M. Marin (@MaxMMarin) December 11, 2015

Protestors have been dragged from entrance. "You're stepping on my face." pic.twitter.com/OfDb1z9uIJ

— Max M. Marin (@MaxMMarin) December 11, 2015

Protestors have former a ring around the two entrances that remain blocked. pic.twitter.com/zkoNLPE4uC

— Max M. Marin (@MaxMMarin) December 11, 2015

Protestors say they will be here until 5 p.m. when City Hall closes, security says "ok." pic.twitter.com/xSX1RtVbsV

— Max M. Marin (@MaxMMarin) December 11, 2015

There are undocumented immigrants among the sit-in protestors, risking far more than arrest pic.twitter.com/XTHqLH2DRB

— Max M. Marin (@MaxMMarin) December 11, 2015

Police regained one of the entrances back from the protestors pic.twitter.com/MRNvDsyAJD

— Max M. Marin (@MaxMMarin) December 11, 2015

Some criticism of protesters blocking handicapped entrance while other entrance remains open, protected by PPD pic.twitter.com/DW3AqAALW0

— Max M. Marin (@MaxMMarin) December 11, 2015

Crowd gathers around to protect entrance. Those sitting down said that security was "counting them" from inside. pic.twitter.com/ikf09QtBiq

— Max M. Marin (@MaxMMarin) December 11, 2015

Update: As of 3 p.m., police presence began to lighten around the scene of the sit-in. The barricade group was permitted to remain outside the entrance for the remainder of the day. No arrests were made.

Police presence has lightened. @NSMPhilly protesters maintain their hold on entrance, singing and chanting pic.twitter.com/5bZ3pdNaL1

— Max M. Marin (@MaxMMarin) December 11, 2015

These kind men went and bought lunch for the protesters. CC: @SUBWAY pic.twitter.com/TtqYTNYJ0y

— Max M. Marin (@MaxMMarin) December 11, 2015

Spirits are high as civil disobedience continues into its 4th hour. pic.twitter.com/DcF2Jv0Qwz

— Max M. Marin (@MaxMMarin) December 11, 2015

Frustrated people - mostly well-dressed w/ briefcases - vocally angry with protesters for blocking entrance & making them walk extra 30 ft.

— Max M. Marin (@MaxMMarin) December 11, 2015

Blanca Pacheco of @NSMPhilly talks about @JimFKenney picking up the pieces left by Nutter's action pic.twitter.com/XKWHkwCcJC

— Max M. Marin (@MaxMMarin) December 11, 2015

Police will not make any arrests. Partial City Hall shutdown looks to continue peacefully for another 2 hours. pic.twitter.com/zQuNf420NS

— Max M. Marin (@MaxMMarin) December 11, 2015