President Barack Obama has said Greece's acceptance of refugees has "inspired the world" - but it cannot handle Europe's migration problems alone.
Speaking in Athens, Obama said "only a truly collective response by Europe and the world" can handle the hundreds of thousands of refugees fleeing violence in the Middle East.
A reluctance by many other European Union countries to host refugees has left more than 60,000 people stranded in Greece, many living in overcrowded camps dotted across the country.
Obama said Greece "cannot be expected to bear the burden alone." [AP]