About 75 Occupy San Francisco activists were arrested and cited for misdemeanor trespassing when police officers removed them from a building owned by the Archdiocese of San Francisco.

The building, blocks from City Hall, had been used for music classes by Sacred Heart Cathedral Preparatory high school as recently as 2010, although the activists believed it had been vacant for several years.

The Catholic Church provides about one-third of all the social services to poor, homeless and vulnerable people in the city.