Huge traffic queues have formed on a Hungarian motorway leading to Austria after border controls were tightened in a bid to clamp down on human trafficking.
Austrian officials put tougher checks in place on the country's eastern border after the bodies of 71 migrants were found in the back of a lorry abandoned on a motorway.
Five people have been arrested in connection with the incident.
Border controls have been tightened in Austria as authorities try to clamp down on human trafficking.
The interior ministry said tougher checks were being put in place at eastern borders after 71 migrants were found dead in the back of a lorry abandoned on an Austrian motorway.
Huge queues formed on a Hungarian motorway leading to Austria as the new checks were introduced.
Traffic was jammed for 12 miles on the country's M1, according to local media.
"We will do controls for an undetermined length of time at all important border crossings in the eastern region, looking at all vehicles that have possible hiding places for trafficked people," minister Johanna Mikl-Leitner told local radio.
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