Over 3000 IS jihadists free in EU: Europol Chief
Europol's Director Rob Wainwright has warned that around 3000-5000 jihadists have slipped into the European Union (EU) after being trained by the Islamic State (IS). However, "there is no concrete evidence terrorists are systematically using the flow of refugees to infiltrate Europe," he added. This comes as four people were arrested in Austria for possible links to the Paris attacks.