How many migrants take the world's deadliest route ...

Around 150 refugees are rescued from a half-sunken catamaran after crossing from Turkey to the Greek island of Lesbos.

 A volunteer lifeguard carries a baby.

 A refugee woman hangs on a rope.

 A refugee hands over a toddler to a volunteer lifeguard.

 A boy cries out for help.

Refugees, most of them Syrians, struggle to leave a half-sunken catamaran. The death toll from drownings at sea has mounted recently as weather in the Aegean has taken a turn for the worse, turning wind-whipped sea corridors into deadly passages for thousands of refugees crossing from Turkey to Greece. 

Refugees, most of them Syrians, struggle to leave a half-sunken catamaran.