The ministry of interior released a statement saying that in the early hours of Tuesday morning assailants driving a car killed three soldiers and injured a police officer and eight other soldiers in Nasr City in east Cairo . The police reportedly came under fire by three passengers in a speeding car while attempting to disperse a demonstration by 250 Azhar University  student supporters of ousted president Mohamed Morsi outside the school's dormitory.
Attacks on police and army personnel have become frequent across Egypt since the ouster of Morsi last July. At least 500 officers and soldiers have been killed.
Security forces has intervened on a regular basis to disperse anti-government demonstrations on Al-Azhar  and other campuses leaving a number of students dead and hundreds arrested.