Egypt's state news agency says a drive-by shooting on a highway east of Cairo has left three policemen dead.
MENA says the attack took place early on Wednesday as the three policemen were patrolling the Suez-Ismailia road. Unidentified gunmen opened fire from their car on the police vehicle and fled the scene.
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The agency says authorities are investigating and searching for the attackers.
Bombings, suicide attacks and drive-by shooting have surged in the country since the military's ouster of Islamist president Mohammed Morsi last summer.
An al-Qaeda-inspired militant group has claimed responsibility for most of the attacks. The government accuses Morsi's group, the Muslim Brotherhood, of orchestrating the attacks and has branded it a terrorist organization. The Brotherhood denies the accusations.