Two adults and a child were injured on Monday when an improvised explosive device detonated in Upper Egypt's Aswan governorate near a security forces camp.
The injured, were transported to Aswan's University Hospital while the police combed the area for more bombs, official news agency MENA reported.
No further details were given about the victims.
Egypt has been battling a decade-long militant insurgency in North Sinai that spiked since the ouster of Islamist president Mohamed Morsi in July 2013.
In recent months, dozens of smaller bombs have been planted by alleged Islamist militants nationwide, targeting security personnel as well as economic installations such as electricity pylons and mobile phone stores.
