The Islamic State in Iraq and Syria (ISIS) has vowed to “cleanse” Egypt from the extremist group’s rule, a week after a suicide bombing in the Sinai Peninsula killed scores of Egyptian Christians.
“We will sweep away your sins and destroy your false religion,” the extremist Islamist group posted on Twitter, which did not give a specific date.
The group, which calls itself the Islamic State, has been fighting to topple the Egyptian government since last year, when its fighters took control of the Sinai peninsula and other areas in North Africa.
A suicide bomber detonated a vehicle bomb in the town of Rafah in northern Sinai, killing at least 30 people and wounding more than 100 others, authorities said.
The attack occurred on the fourth anniversary of the 2011 uprising that ousted Hosni Mubarak, who has been in power since the 2011 military overthrow of the Muslim Brotherhood.
The attack was not immediately clear if it was connected to the suicide bombing or a car bomb in Egypt’s capital, Cairo, that killed about 150 people on Saturday.ISIS, which has carried out several deadly attacks on Coptic Christians, said the attack was part of an offensive by the group.
Egyptian authorities have struggled to quell the threat of ISIS since the group’s takeover of swathes of North Africa, including the Sinai and the North African region.
In the aftermath of the attack, Egyptian authorities have blamed ISIS for a series of deadly attacks and clashes, including in the North Sinai province and the Sinai Desert.
Egypt’s army said on Saturday it had killed a senior ISIS operative in a raid in the desert.
Al Jazeera’s Imran Khan contributed to this report.