A worker walks near his camel as he waits for tourists at the Giza pyramids area, south of Cairo, February 20, 2014. A militant Islamist group has warned tourists to leave Egypt and threatened to attack any who stay after Feb. 20, raising the prospect of a new front in a fast-growing insurgency in the biggest Arab nation. The Sinai-based Ansar Bayt al-Maqdis group, which claimed responsibility for a suicide bombing that killed two South Korean tourists and an Egyptian on Sunday, made the statement on an affiliated Twitter account. REUTERS/Asmaa Waguih (EGYPT – Tags: TRAVEL CIVIL UNREST)