European leaders have hit out at each other's handling of the migrant crisis across the continent.
The hastily-arranged summit in Brussels came amid attempts to curb the latest efforts by thousands of refugees to cross the Balkans.
Croatia and Slovenia are said to be "overwhelmed" by the numbers arriving in the last few days.
Speaking on his way into the meeting the Greek Prime Minister Alexis Tsipras accused some of his counterparts of nimbyism.
"I believe that we have a big responsibility, when refugees everyday loose their lives.
"Importantly, until today, it was difficult to find a solution because a series of countries adopt a stance 'not in my own backyard'."
EU mini-summit seeks unity in Balkans over migrant crisis https://t.co/CVDZYOHHdd— Reuters (@Reuters) October 25, 2015