Turkish prosecutors on Thursday sought a 35-year jail term for two traffickers who were allegedly responsible for the death of three-year-old Syrian boy Aylan Kurdi, the pictures of whose body washed ashore symbolised Syria's refugee crisis.

Acording to reports in Turkish media, the suspects, who are both Syrian nationals, stand accused of 'causing death by deliberate negligence' and 'migrant smuggling' after five Syrian refugees, including Aylan, died when their boat sank in September en route to Greece.

The photos of Aylan's body, face down in the sand on a beach off the Turkish coast, caused an outpouring of anger across the world, pressuring European leaders to begin to tackle the refugee crisis.

Aylan's mother and brother, who were in the flimsy boat seeking to cross the Aegean Sea for the Greek island of Kos, died in the same accident while his father survived.

Aylan's father, who later returned to Kobane in Syria to bury his family, said the toddler's last words were 'Daddy! Please don't die', before he slipped into the sea.