Italian authorities arrested four people suspected of extremism on Thursday and issued arrest warrants for two more operating in Syria, according to the Milan prosecutor. Authorities said one of the suspects is a Moroccan-born national living in Italy who had received orders from the Islamic State militant group (ISIS) to conduct an attack in Rome during the Holy Year, a period announced by Pope Francis that lasts from December 2015 to November 2016. The man, who authorities named as Abderrahim Moutahrrick, is reported to have received a WhatsApp message from ISIS-held territory that read: “Dear brother Abderrahim, I send you… the bomb poem… listen to the sheik and strike,” in reference to ISIS leader Abu Bakr al-Baghdadi. Milan prosecutor Maurizio Romanelli said that Moutahrrick planned to attack the Vatican and the Israeli embassy in Rome and told one of the other suspects, 23-year-old Moroccan-born Abderrahmane Khachia, in a monitored conversation: “I want to hit Israel in Rome.” Authorities arrested Khachia in the northern Italian city of Varese and Moutahrrick was living in the city of Lecco, north of Milan in the province of Lombardy. Romanelli added that Italian investigators intercepted the message before swooping on the cell and said that the threat was specific as it came from an individual who had received direct orders. “This is a new profile, because it was not a generic indication, but an indication given to a specific person who was invited to act within the territory of the Italian state,” Romanelli said, according to Italian news agency Ansa.