Five people were injured, including one seriously, in a blast that targeted a passenger bus in eastern Cairo early Thursday.
The explosion left five people injured, Health Ministry spokesman Ahmed Kamel told Anadolu Agency.
A homemade explosive device exploded as a bus passed near Cairo's Azhar University, a security source said.
Bomb disposal teams defused another bomb in the same area, Egyptian state television reported.
By Hagar al-Dosoki
englishnews@aa.com.tr