Islamic State claimed responsibility for the attack in a statement posted by its news agency Amaq.
The attack near Arish, the capital of North Sinai province, wounded three others including a brigadier general who lost his leg.
It also destroyed three armored vehicles and a signal-jamming vehicle.
An insurgency by the Sunni militant group has gained pace since the military toppled President Mohamed Mursi of the Muslim Brotherhood, Egypt’s oldest Islamist movement, following mass protests against his rule in mid-2013.
Hundreds of soldiers and policemen have been killed since then.
There was no immediate comment from the Interior Ministry on Monday’s attack.
State news agency MENA quoted a high ranking ministry official confirming the attack and casualty figures.
Security forces were exchanging fire with militants near the explosion site and managed to kill several of them, MENA said.
Four ambulance workers were also injured during the shooting and security forces are pursuing and engaging the militants, the sources said. -Reuters
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