[Osem]

Tear gas has been used to disperse hundreds of migrants trying to break through a fence at Greece's border with Macedonia.

The incident was near the Idomeni crossing, where more than 11,000 refugees and other migrants are camped out on the Greek side of the border.

There was some confusion over whether the Macedonian or Greek police were firing the tear gas, or both.

http://www.bbc.co.uk/news/world-europe-36009497

More than a million undocumented refugees and other migrants have entered the EU by boat from Turkey to Greece since early last year, generating an unprecedented crisis for the EU's 28 member-states.