11:51 AM
Jalal HB
The European Union's counter-terrorism co-ordinator has warned that hundreds of Europeans are now fighting with rebel forces in Syria against Bashar al-Assad's regime.
Gilles de Kerchove estimated the number in Syria at about 500 - including fighters from Ireland the United Kingdom and France.
Intelligence agencies are concerned some could join groups linked to Al-Qaeda and later return to Europe to launch terrorist attacks.
