Greece's prime minister conceded on Thursday that the country was unable to cope with the thousands of migrants arriving daily on its shores, just days after saying that he was shamed by Europe's handling of the crisis. Alexis Tsipras was visiting Lesbos the Greek island which has received the bulk of arrivals and where aid groups condemned living conditions for refugees as dire. "I think we are battling something which is beyond our abilities, and everyone should understand that," he said, on a visit to a packed migrant registration centre with Martin Schulz, head of the European Parliament.