Mr Barnier said France should declare a 'moratorium' on non-EU migration
Pause should last for between three and five years, he added, allowing France to 'evaluate and if necessary change' its immigration policies
He also warned of 'terrorist networks which [infiltrate] migratory flows'
Mr Barnier, EU's chief negotiator on Brexit, is now widely being tipped to enter the 2022 French presidential race as a rival to Macron