A Greek fisherman rescues a Syrian migrant, right, after his boat stalled while crossing from Turkey to the island of Lesbos, Greece, Sept. 22, 2015. More than 260,000 asylum-seekers have arrived in Greece so far this year, most reaching the country's eastern islands on flimsy rafts or boats from the nearby Turkish coast.
An exhausted Afghan migrant frantically looks for her children as she arrives on the Greek island of Lesbos in an overcrowded dinghy after crossing a part of the Aegean Sea from the Turkish coast.
Syrian refugees arrive on a beach covered with life vests and deflated dinghies on the Greek island of Lesbos.
Migrants wait in front of a registration camp for migrants in Opatovac, Croatia. Interior Minister Ranko Ostojic said Croatia will demand that Greece stop moving migrants from the Middle East on to the rest of Europe. Around 29,000 people, mostly from Syria, have arrived in Croatia from Serbia in the past week after trekking northwards through the Balkans from Greece.