11.   Some protesters damaged buildings and clashed with riot police, and one tore down the U.S. flag and the crowd set it on fire.

12.   Protesters also badly damaged mining offices, the source said.

13.   The Arequipa airport, an important regional hub, remained closed after protesters damaged the main terminal and blocked the runway Saturday.

14.   The demonstration, however, was moved from its initial site near a controversial memorial to another area nearby out of fear that the protesters would damage the monument.

15.   The protesters damaged seven vehicles and hurled stones at several places, defying the curfew order, they added.