The Latest: Greek prime minister laments migrant tragedies, blames western nations

In this Wednesday, Oct. 28, 2015, refugees arrive to the port of Molivos on a fishing boat after the boat in which they were crossing the Aegean sea from Turkey to the Greek island of Lesbos sunk. They were among 242 people rescued from a boat that sank overnight in rough seas off the Greek island's north coast. Eight people drowned and 33 remained missing. In all, five separate incidents in the eastern Aegean Sea on Wednesday left at least 12 people dead, most of them children. (AP Photo/Santi Palacios) (The Associated Press)

Two women hug each other as a boy cries after their arrival from the Turkish coast to the Greek island of Lesbos, Thursday, Oct. 29, 2015. Europe's largest refugee crisis since World War II is entering a perilous and uncharted phase, as the usual pattern of migrant season ending by autumn is overturned by intensifying fighting in Syria and overcrowding in refugee centers in Turkey and Lebanon. (AP Photo/Santi Palacios) (The Associated Press)

A photographer helps a girl to disembark on the Greek island of Lesbos after arriving with around 125 people on a boat from the Turkish coast, Thursday, Oct. 29, 2015. Europe's largest refugee crisis since World War II is entering a perilous and uncharted phase, as the usual pattern of migrant season ending by autumn is overturned by intensifying fighting in Syria and overcrowding in refugee centers in Turkey and Lebanon. (AP Photo/Santo Palacios) (The Associated Press)