State media reported that a car bomb was believed to be responsible for the blast. Sunday's attack follows a deadly bombing the previous week when the police headquarters in Mansoura, in northern Egypt, was attacked on December 24, killing sixteen. Militant group Ansar Bayt al-Maqdis claimed responsibility for last week's bombing although the Egyptian government blamed the Muslim Brotherhood and labeled it a terrorist organization.
The Egyptian government also announced it would arrest anyone attending Muslim Brotherhood protests or anyone providing financial support to the group. Following that announcement, pro-Muslim Brotherhood protests erupted. On Friday, three people died and 265 were arrested.
College students set fire to the cafeteria at Azhar University Sunday during a protest. One student died and sixty were arrested.
Tensions between security forces and Muslim Brotherhood supporters spiked following the military's removal of President Mohamed Morsi, a Muslim Brotherhood member, in July 2013.