Paris prosecutor Francois Molins gives a press conference, in Paris, Friday, Nov. 25, 2016. Five men arrested this week in two French cities were planning a terror attack in France as early as next week and were receiving their orders from an Islamic State group member based in Iraq or Syria Paris prosecutor Francois Molins said Friday. (AP Photo/Thibault Camus)
Paris prosecutor Francois Molins gives a press conference, in Paris, Friday, Nov. 25, 2016. Five men arrested this week in two French cities were planning a terror attack in France as early as next week and were receiving their orders from an Islamic State group member based in Iraq or Syria Paris prosecutor Francois Molins said Friday. (AP Photo/Thibault Camus)

Paris — French authorities claimed on Friday the Islamic State had a direct hand in helping five suspected militants plot “imminent attacks” against possible targets including Paris police hubs and Euro Disney.

French police had earlier said they believed they had foiled attacks planned for Dec. 1 against the Paris headquarters of police and intelligence officers and the Disney theme park, which is especially popular during the holiday season.

But the latest details, made public by a senior prosecutor, draw alleged links to the Islamic State and a core network of suspects — four French citizens who were longtime friends. The suspected fifth plotter, a homeless Moroccan man, was arrested in the southern port of Marseille.

A raid on Sunday in Strasbourg uncovered firearms and instructions from “the Iraqi-Syrian region” to acquire more weapons, said Paris prosecutor François Molins. Also found were documents professing allegiance to the Islamic State, he said.

“The state of the threat is and remains particularly high,” Molins said.

The names of the Strasbourg suspects were given only as Yassin B., Hicham M., Samy B. and Zakaria M. Icham E., the suspect arrested in Marseille, was homeless, Molins said.

The revelation of the foiled plot comes before the second and final round of France’s conservative presidential primaries on Sunday. Throughout the campaign, the issue of national security has dominated.

The front-runner, former Prime Minister Francois Fillon, has said that France “has a problem linked to Islam.”

France has remained under a state of emergency since the November 2015 Paris attacks, which killed 130 people in coordinated strikes on a concert hall, a stadium and cafes.

In July, a lone man inspired by ISIS plowed a truck through crowds gathered in Nice to celebrate the country’s national holiday, Bastille Day.