A senior EU official told the BBC the Greek government must stop illegal deportations of migrants arriving at the country’s borders.
The Commissioner for Home Affairs, Elva Johansson, said the “well-founded” reports of “blowbacks” at sea and on land were “violations of basic European values”.
Human rights groups claim that thousands of people seeking asylum in Europe were sent back from Greece to Turkey before they were given a chance to apply for asylum.
Greece has always denied these allegations.
The BBC’s Fergal Kane reports from Lesbos.
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