Syrian refugees: 'There's no happiness. I miss my son'

The Greek government and the UN refugee agency have brought in extra staff and ships to deal with some 25,000 stranded migrants on the island of Lesbos.

But for many of those who have fled war-torn Syria, there is no end to their misery.

Luka said that he wished he could return to Lebanon, where he initially travelled after leaving his home, while Ziat spoke of his sadness over the son he last saw in a refugee camp.