Egypt's President Abdel-Fattah El-Sisi ordered on Saturday "increased security at vital facilities" after a high-ranking army officer was shot dead on the outskirts of Cairo earlier in the day.
During a meeting with top government officials led by the prime minister, El-Sisi said that Egypt would not forget the “sacrifices made by the martyrs of the nation from the Armed Forces and police,” presidency spokesman Alaa Youssef said in a statement.
Earlier on Saturday, Egyptian military Brigadier General Adel Rajaei, an armoured division commander in Dahshur, was shot dead by unknown assailants in front of his house on the outskirts of Cairo.
On Friday, Egypt's army said it killed 21 militants in North Sinai as part of its intensified anti-terror efforts after an October militant attack that killed 12 army soldiers and injured six others.
Egyptian forces have in recent years been battling a prolonged Islamist insurgency based in parts of the northern Sinai region.