Fanatics also called on jihadists to kidnap foreign travellers to embarrass the government and damage the valuable tourist economy.
UK tour operators stopped flying to the popular resort of Sharm el Sheikh after the downing of a Russian holiday jet in 2015 – killing all 224 people on board.
But now the terror group – which controls areas of the Sinai region to the north of the Red Sea resort – is demanding attacks to destabilise the Egyptian government ahead of elections in late March.
An editorial in the ISIS weekly Al-Naba, which was released online, explicitly threatens attacks.
It tells ISIS operatives to intensify their attacks against “belligerent” Christians and tourists in the country.
The article says: “And it is worth mentioning in these days that the mujahideen in all regions of Egypt aim to escalate their attacks against the apostates, belligerent Christians, and the polytheists from among the tourists [i.e. Christian and Jewish tourists], and others.”
And the Middle East monitoring group MEMRI revealed that one ISIS supporter in the region wrote on the messaging channel Telegram: “The infidel Egyptian regime is attempting to demonstrate its presence, flaunt its power and take pride in itself therefore:
“Operations targeting the Christians and seizing their property will embarrass the regime and show it up more than targeting the military and police.
“Kidnapping foreigners and tourists will greatly embarrass the regime and destroy its economy.”
Despite the lifting of the travel to the Red Sea region, the UK’s Foreign and Commonwealth Office is still advising that terror attack in the country are “very likely”.
The latest FCO guidelines – calling ISIS groups in the area Daesh-Sinai – state: “Terrorists are very likely to try to carry out attacks in Egypt.
“The main threat is from extremists linked to Daesh-Sinai. You should avoid crowded places and gatherings, eg, in or around religious sites and during religious festivals.”
In recent years the country has been rife with political turmoil, violent protests and terrorism attacks.