CONCERNS ABOUT LIBYA
Egypt, the most populous Arab state, has not taken part directly in the U.S.-led air strikes against Islamic State targets in Iraq and Syria, focusing instead on the increasingly complex insurgency within its own borders.
Militants based in Libya have made contact with Sinai Province, a group operating from Egypt's Sinai Peninsula that has changed its name from Ansar Beyt al-Maqdis and pledged allegiance to Islamic State.