UPDATE 1-Protesters attack US embassy in cradle of Arab Spring
September 14, 2012 at 12:50 PM EDT
TUNIS, Sept 14 (Reuters) - At least 20 people were wounded when police opened fire on Friday to try to quell an assault on the U.S. embassy in Tunis by hundreds of protesters incensed by a U.S.-made film insulting the Prophet Mohammad.
