* *Migrants bussed back to Athens from Macedonian border
* *West Balkan states meet in Austria on Wednesday
* *Greece not invited*
Greece has begun bringing migrants back to Athens from its northern border with Macedonia.
Restrictions in countries along the mainland route to Western Europe have left huge crowds building up behind a bottleneck at the frontier. #greece Idomeni border: police ordered mostly Afghan migrants on buses bound for Athens @PGiannakouris pic.twitter.com/8darmnT…