European Council President Donald Tusk is due to visit Greece and Turkey as he tries to find a common approach to Europe's worsening migration crisis. 


Mr Tusk has said reducing the number of migrants travelling from Turkey to the Greek islands is key to avoiding a humanitarian disaster. 


More than 25,000 migrants are now stranded in Greece as border controls further north are tightened. 


Migration is also due to be discussed at a UK-French summit on Thursday.
UK PM David Cameron and French President Francois Hollande will hold talks in the French city of Amiens. Counter-terrorism and conflicts in Libya and Syria are also expected to be on the agenda

Source: NNA