After the attacks in Brussels and Paris, Islamic State officials have claimed that more sleeper cells were incubating in Europe. The arrests highlighted the significant threat to Europe from Islamic State militants posing as migrants. Read more:More European nations are barring their doors to migrantsWere Syrian refugees involved in the Paris attacks? With the approval of the Islamic State leadership, authorities said, Saleh A. and Hamza C. traveled to Turkey in May 2014. Investigators also suspect that one of the two Islamic State adherents had links to the radical Islamist group Jabhat al-Nusra, which is known as the Syrian affiliate of al-Qaeda.

Source: Washington Post June 02, 2016 12:13 UTC