New Greek migrant clashes as EU chief warns 'exodus' could last years'

Fresh clashes erupted between police and migrants on the Greek island of Lesbos Tuesday, the latest flashpoint of the crisis shaking Europe as EU President Donald Tusk warned the refugee "exodus" could last for years.

With authorities warning Lesbos was "on the verge of explosion", a dozen or so coastguards and riot police armed with batons struggled overnight to control some 2,500 migrants in the island's main port, screaming "keep back" as the crowds surged towards a government-chartered ferry bound for Athens.