Raids by French police net arrests

Police conducted raids in search of suspected Islamist militants across France and in Belgium overnight following the Paris attacks, and a source close to the investigation said that a Belgian national in Syria was suspected of orchestrating Friday's mayhem.

Prosecutors said one of the killers had been stopped and fingerprinted in Greece last month, fueling speculation that the Islamic State group had taken advantage of the recent influx of refugees fleeing the Middle East.

The Paris carnage, in which 129 people were killed, has led to calls for the European Union to close its borders to asylum seekers.