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.
A fourth suspect has been arrested in connection with a lorry that was found abandoned in Austria with 71 bodies inside.
Hungarian police confirmed that three Bulgarians and one Afghan citizen had been arrested.
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.