A child died on Thursday after falling from a fence onto an iron skewer at a school in Giza, the second death at a school this week.
The student was taken to a nearby hospital in Haram district but succumbed to his injuries, Al-Ahram Arabic news website reported.
Minister of Education Mahmoud Aboul-Nasr ordered the suspension of the school's principal, security guards and supervisors while they are investigated.
Earlier this week, a pupil died after a water fountain fell on him at a school in Qalioubiya.
The two deaths bring the number of students killed at schools to at least five this term.
Complaints that Egyptian public schools have long been deteriorating and lacking basic safety features have become common.