A second group of refugees has left Greece for Turkey, as part of a European Union deal to reduce the numbers reaching Europe.
A ferry carrying a group of Pakistani men sailed for Turkey from the island of Lesbos, after being delayed by a small protest.
Three protesters dived into the water and swam in front of the ferry in an attempt to prevent it departing for the Turkish port of Dikili.
Ewa Moncure, the spokeswoman for the EU border agency Frontex, said the 45 Pakistani men on board were all returning voluntarily.
