EGYPT REELING FROM MOSQUE ATTACK.

• Egypt was reeling Sunday from the horrific militant attack on a mosque in northern Sinai that killed 305 people two days earlier — the deadliest assault by Islamic extremists in its modern history and a grim milestone in a long-running fight against the insurgency led by an Islamic State affiliate.

Survivors and Egypt’s top prosecutor have given accounts of the massacre that unfolded as more than two dozen assailants, carrying a black ISIL banner, unleashed gunfire and explosions during Friday prayers at the Al-Rawdah Mosque in a sleepy village by the same name near the small town of Bir al-Abd.

The attackers arrived in five SUVs, took positions across from the mosque’s door and windows, and just as the imam was about to deliver his sermon from the pulpit, they opened fire and tossed grenades at the estimated 500 people inside.

The worshippers screamed and cried out in pain. A stampede broke out in the rush toward a door leading to the washrooms. Others tried desperately to force their way out of the windows. Those who survived spoke of children screaming as they saw parents and siblings mowed down by gunfire or shredded by the blasts.

When the violence finally stopped, 305 people, including 27 children, had been killed and 128 wounded.

One of the witnesses, Ebid Salem Mansour, recalled how the attackers shouted Allahu Akbar, or God is great, as they fired on the worshippers.

So composed were the militants that they methodically checked their victims for any sign of life after the initial round of blazing gunfire. Those still moving or breathing received a bullet to the head or the chest, the witnesses said. When the ambulances arrived they shot at them, repelling them as they got back into their vehicles and fled.

Despite the banner, ISIL still has not claimed responsibility for the attack.