At least 14 people were killed Tuesday when a powerful explosion caused by a car bomb rocked a police headquarters in a Nile Delta city north of Cairo. Among the injured is the head of the security directorate of Dakahlia governorate.
The interim government accused the Muslim Brotherhood of orchestrating the attack, branding it a "terrorist organization."
Cabinet spokesman Sherif Shawki said that the Muslim Brotherhood showed its "ugly face as a terrorist organization shedding blood and messing with Egypt's security."
The attack came a day after an al-Qaida-inspired group called on police and army personnel to desert or face death at the hands of its fighters.