Eyewitnesses reported ambulances ferrying casualties from
the scene to nearby hospitals after the attack on Al Rawdah mosque in Bir
al-Abed, west of Arish city.
President Abdel Fattah al Sisi convened an emergency security
meeting soon after the attack, state television reported.
The government later declared a three-day mourning for the victims of the attack.
Egypt’s security forces are battling an Islamic State
insurgency in north Sinai, where militants have killed hundreds of police and
soldiers since fighting there intensified over the last three years.
Militants have mostly targeted security forces
in their attacks, but have also tried to expand beyond the peninsula by hitting
Egyptian Christian churches and pilgrims.