Police started the border controls late on Wednesday on the A17 motorway connecting the east German state of Saxony with the Czech Republic, spokesman Christian Meinhold said, adding that four traffickers had been arrested since then, Reuters reported.
Germany decided on Sunday to temporarily reintroduce border controls in response to the refugee crisis, with federal police focusing on the Austrian border first.
As UNIAN reported earlier, on September 13, Germany decided to reintroduce some form of controls on its border with Austria to handle the influx of migrants.
The European Commission said it saw no violation in such a decision.
Slovakia announced a similar decision later.
Austria tightened controls at the border with Hungary on September 16. Slovenia introduced border controls on September 17.
France, Poland and Lithuania also announced readiness to reintroduce border control.
