Egypt has mounted a wave of air strikes against fighters they believe carried out the bombing of a mosque in northern Sinai.
The air strikes against terrorist hideouts are in response to the massacre of 305 worshippers.
Another 128 people were wounded in the attack.
President Abdel Fattah al‑Sisi has promised "brutal force" to avenge the deaths.
Egyptian officials investigating the massacre of worshippers at a mosque in Sinai said the attackers were carrying the flag of the Islamic State group.
The assault was launched during Friday prayers and has not yet been claimed by any group.
Egypt's public prosecutor said there were up to 30 attackers at the scene.
Source: BBC