Gunmen travelling in a car opened fire on Tuesday on a group of Egyptian policemen outside Cairo´s world famous Al-Azhar university, killing three and wounding nine others, the interior ministry said.
The attack comes just days ahead of a presidential election on May 26-27, which former army chief Abdel Fattah al-Sisi is expected to win by a landslide.
The number of attacks targeting policemen has risen since Sisi ousted president Mohamed Morsi in July last year.
