Hundreds of migrants have arrived by rail in Vienna the capital of Austrian capital after being held for several hours at the Hungarian border.
Austria officials has started extra checks on road vehicles entering from Hungary after 71 dead people were found in a lorry on Thursday.
The number of migrants entering Europe has reached record levels, with 107,500 arriving in July alone.
Most of those found dead on Thursday, on the A4 at Parndorf, were thought to be Syrians fleeing the country’s civil war.
Five people have been detained in connection with the deaths.
Thousands of people rallied in Austria on Monday demanding better rights for migrants.
