But there were no direct trains running to Western Europe.
It came as Hungary`s anti-immigrant Prime Minister Viktor Orban was due in Brussels for talks on the migrant crisis.
The number of migrants entering Europe has reached record levels, with 107,500 arriving in July alone.
Germany expects to take in 800,000 migrants this year - four times last year`s total.
The surge in numbers has created tension and disagreement over EU migration policy.
On Wednesday, Germany, Italy and France called for "fair distribution" of refugees throughout the EU.
Italy and Greece have complained that they are overwhelmed by the numbers arriving on their shores. And while countries such as Germany are prepared to accept large numbers of asylum seekers, others are not.
EU interior and justice ministers will meet in Brussels on 14 September to address the crisis.
On Wednesday, UK Prime Minister David Cameron said that taking "more and more" refugees was not the answer.
The human cost of the crisis was made clear on Wednesday when five children were among 12 migrants who drowned in Turkish waters while trying to reach Greece.
Images of the washed-up body of a three-year-old boy, who died alongside his mother and five-year-old brother, circulated widely on social media.
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