Photo taken on Sept. 9, 2015 shows that Avenue Habib Bourguiba has been closed to traffic due to potential terrorist attacks in Tunis, Tunisia, Sept. 9, 2015. Tunisian authorities ordered to close Avenue Habib Bougiba, which is the main street of capital city from Wednesday morning until next Monday as a preventative security measure after intelligence sources unveiled that vital institutions in downtown Tunis are targeted by potential terrorist attacks. (Xinhua/Adel Ezzine)
