The head of the European Union's border agency told Bild on Wednesday that more than 800,000 people had entered the EU illegally since the beginning of 2015.
Europe's interior and foreign ministers will meet in mid-October to discuss how to respond to the huge influx of migrants and refugees arriving at EU borders, the French and German interior ministers announced after a Berlin meeting on Thursday.
Fabrice Leggeri, head of the European border agency Frontex, said in Berlin on Wednesday that he was planning more interventions around Greek islands in the Mediterranean.