European Union interior ministers urged Greece on Monday to do more to control the influx of migrants, some threatening to have it excluded from the continent's prized passport-free travel zone as the crisis increasingly divides bloc members.
Greece was the main gateway to Europe for more than a million refugees and migrants who reached the EU last year. It has been criticized for a failure to control the flow of arrivals, which has shown little sign of easing over the winter.
Some member states said Athens must deliver on obligations to alleviate the crisis, which has put the passport-free Schengen zone — hailed by many as the greatest achievement of European integration — on the verge of collapse.