Austria says it expects up to 10-thousand migrants to arrive from Hungary today.
The Hungarian Government originally blocked their journey to western Europe – but relented after Austria and Germany agreed to open their borders last night.
Some migrants attempted to walk along one of Hungary's main motorways – however a special half-hourly train service is now running to take people to Vienna – on top of 20 buses.
Erno Simon from the United Nation's refugee agency says some of those refugees urgently need help.
