Masked gunmen opened fire at Mar Mina Church in Port Said's al-Manakh early Tuesday and managed to get away, according to state-run news agency MENA. No casualties were reported.
Army and police squads arrived at the scene of the attack and efforts are being undertaken to identify the perpetrators.
This is the third such attack in 24 hours. Yesterday, unknown attackers assaulted Port Said's western seaport and the province's traffic police department.
A priest was killed Saturday in Masaeed in North Sinai.
The attacks come days after Egypt’s army toppled Islamist president Mohamed Morsy, yielding to mass protests demanding early elections. Morsy’s Islamist supporters have protested the army's decision.
Several Jiahdist leaders have been quoted in media reports as saying they vow to fight to defend Morsy’s legitimacy.
Edited translation from MENA