Smoke rises from the security headquarters after a deadly explosion in the southern Sinai town of el-Tor, Egypt, Monday, Oct. 7, 2013. Monday’s attack that killed several people and wounded tens comes a day after at least 51 people were killed in clashes between security forces and supporters of ousted Islamist president Mohammed Morsi across much of Egypt. The region of southern Sinai, which includes the popular diving resort of Sharm el-Sheikh, has been mostly quiet since a series of deadly attacks in 2005 and 2006. (AP Photo)