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 fifth suspect has arrested in connection with the discovery of the bodies of 71 migrants in back of a lorry found abandoned on an Austrian motorway.
The Bulgarian citizen is also under suspicion of human trafficking, Hungarian police said.
Meanwhile, postmortems have been carried out on 16 of the bodies and it is presumed they suffocated, Austrian police said.
"We are still awaiting the final report from the forensic team, but it looks like they have suffocated," said police spokesman Gerald Pangl.
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.