ISIS has issued "direct threats" against some of Dubliners' favourite holiday spots after a new report raised fears of a terror attack.
ISIS have reportedly vowed to take revenge on Spain after anti-terror police arrested dozens of suspected militants in 2016
Spain's government has warned of the threats amid the latest signs that the militant group has encouraged sympathisers to launch catastrophic attacks.
An Irish Travels Agents survey last month revealed 65% of travel agents say that Spain was the most popular destination for Irish people booking a holiday.
ISIS have reportedly vowed to take revenge on Spain after anti-terror police arrested dozens of suspected militants in 2016.
Authorities have seen an alarming increase in the number of propaganda videos subtitled in Spanish and aimed at possible recruits in Spain.
The government document reveals that the jihadist group is stepping up its efforts to hire Spanish translators, suggesting plans to attract Spanish-speaking foreign fighters, the Olive Press reports.
The warning has led to fears of terror attacks similar to what have been seen in Berlin and Nice last year in Spain.
A Tunisian massacre last year has also led to fears of a beach attack in these popular holiday spots.
David Videcette, a former counter-terrorism officer who investigated the 7/7 bombings in London, told the Olive Press that an attack in Spain was "very possible".
He added: "They may well be looking to attack specific countries with tourists.
"It’s very possible Costa Brava, Costa Del Sol, those sort of places could be on someone’s target list."
Earlier this year the Irish government released a list of places that could be at threat and what precautions should be taken.
In Spain normal precautions were advised.
They said: "There is a general threat from terrorism in Europe, and the threat in Spain is considered to be high.
"While there is a risk of indiscriminate attacks, targets could include areas frequented by tourists."