A police officer and two police conscripts sustained minor injuries on Friday after an improvised bomb exploded in the town of Rafah in North Sinai, Al-Ahram Arabic news website reported.
According to security and medical sources, the explosion took place in the Abu Shanar area in Rafah.
No group has yet claimed responsibility for the attack.
Egypt has been battling an Islamist insurgency that has spiked since the 2013 ouster of Islamist president Mohamed Morsi.
The militancy, based in parts of North Sinai, has killed hundreds of police and soldiers. Authorities have also reported that hundreds of militants have been killed in military campaigns in the governorate.
The country's most active militant group, Ansar Beit Al-Maqdis — now an affiliate to the ISIS group — has claimed responsibility for the most lethal attacks.