Only four victims were identified.
The attack started with roadside bombs that destroyed and set ablaze four armored vehicles and a fifth one carrying signal jamming equipment.
One of the suspects reportedly attempted to detonate a suicide belt but was killed by the police. Ambulances were unable to reach the area of the attack immediately because terrorists were targeting them with fire, according to sources. Security campaigns are now ongoing in the area.More news: Jaguar's electric E-type Zero is absolutely handsome
There was no immediate comment from the Interior Ministry on Monday's attack.
Islamic State of Iraq and the Levant (ISIL) claimed responsibility for the attack in a brief statement carried by its Aamaq website.
Egyptian security forces killed 10 suspected militants Sunday in a shootout during a raid on two apartments in central Cairo.More news: Top Kashmiri separatist leader Yasin Malik arrested by NIA in Srinagar
The officials spoke on condition of anonymity because they were not authorized to speak to the media.
Private newspaper al-Masry al-Youm, citing security sources, reported that the slain extremists were from the self-styled Hasm group, which authorities accuse of being the armed wing of the now-outlawed Muslim Brotherhood. North Sinai has witnessed several terror attacks since the January 2011 revolution that toppled the longtime president Hosni Mubarak.
Egypt is fighting an insurgency led by a local affiliate of the Islamic State group based in the Sinai Peninsula as well as Brotherhood factions like Hasm, which target members of the security forces in Cairo. Hundreds of police and soldiers have been killed since then. Two of the suspects were wanted on terrorism-related charges in North Sinai. The security forces have arrested suspects and demolished houses that belong to terrorists, including those facilitating tunnels leading to the Gaza Strip.More news: PM Modi presents special gifts to Myanmar President