Security forces evacuated a building at the Heliopolis Court on Tuesday after finding two explosive devices in its vicinity, a security official said.
Ahmed Hanafy, head of the Heliopolis Prosecution, told Aswat Masriya that security sources found two plastic bags at an entrance to the court. He added that on of the bombs inside the bags detonated upon inspection.
Earlier on Tuesday, a car carrying an explosive device exploded in the vicinity of a police station in the coastal city of Alexandria, killing one of the passengers and injuring two others.
Violence erupted nationwide starting Saturday, ahead of the fourth anniversary of the January 2011 uprising which toppled the regime of former President Hosni Mubarak. The anniversary day, Sunday, was marred by violence, with at least 23 reported deaths nationwide.