IS has posted a statement on a militant-affiliated website claiming responsibility for the attack.
Ten more bodies were found in mass graves in war-torn Libya, the country's UN-recognised government said.
Comment: The ideals of the Arab Spring remain out of reach for many. But the quest for freedom, though long and uneven, is inevitable and unstoppable, writes Mohamed ElBaradei.
The United Arab Emirates and Qatar will reopen flights at the end of the month.
The sale of 50 F-35 jets and up to 18 armed drones was promised to the UAE when it agreed to normalise relations with Israel in August.
A spokesman for the Muslim Brotherhood has predicted that Egypt will witness an uprising against the practices of President Abdel Fattah Al-Sisi.
Italian prosecutors requested a trial for four Egyptian security officers for the killing of student Giulio Regeni.
Libyan envoys at UN-backed talks agreed to hold a constitutional referendum before planned elections, Egypt's foreign ministry said.
Analysis: Biden may have no choice but to make difficult decisions against the backdrop of Ethiopia's civil war, the Nile Dam dispute, as well as Sudan's fragile political transition.
Book Club: Togo Mizrahi's extraordinary life story and films are unearthed in a new book by Deborah Starr.