According to CNN:
At least 235 people were killed and another 109 injured in an attack Friday on a Sufi mosque in Egypt’s North Sinai region, Egyptian state-run media reported, in what appears to be the deadliest terror attack on Egyptian soil.
After at least two explosions, gunmen who were waiting outside the mosque opened fire at worshippers as they fled Friday prayers, state-owned Ahram Online said.
The attack targeted al Rawdah mosque between Bir al-Abed and the city of al-Arish. Sufism is a mystical branch of Islam that some ultra-orthodox Muslims consider heretical.
LORD, HAVE MERCY!