An explosive charge went off Monday when an armored vehicle affiliated to the army was passing by in el Giesh street here.
The blast left a conscript and a civilian wounded.
The armored vehicle, two other cars as well as some stores were harmed by the explosion.
Security sources in North Sinai said that the security forces blocked the road and combed the area in search for more explosive charges and to track down the perpetrators.
The wounded were rushed to hospital, the sources added.