German authorities said Wednesday they had registered around 577,000 asylum-seekers in the first nine months of this year, a third of whom claim to be from Syria.

The Interior Ministry said however that the figure could be subject to errors, given that some migrants would not follow through with their applications while others may have given incorrect information.

Nevertheless, the number was more than twice the total arrivals of 200,000 for 2014, with Europe's top economy expecting to receive up to one million asylum seekers this year.