Updated at 10:40 a.m. Friday with arrest details.

ST. LOUIS — Police arrested Alderman Megan Ellyia Green and several board members of Planned Parenthood of the St. Louis Region on Thursday after a downtown protest over Missouri's new abortion law — and the state's attempt to close Missouri's only remaining abortion clinic.

Green and others sat down in the lobby of the Wainwright State Office Building after a protest in a park between the Gateway Arch and the historic Old Courthouse.

By the time the bulk of the protesters had marched from the park, Green and the others were seated in the lobby of the Wainwright building and security guards had barred and locked the doors.

Green livestreamed on Facebook as protesters inside chanted, sang and vowed not to leave until the Planned Parenthood clinic was given a permit to operate.