Germany has seen a slump in the number of people arriving to seek asylum, weeks after several Balkan states tightened their borders, figures show.
Some 20,000 people applied in March; last December it was 120,000.
German Chancellor Angela Merkel said the focus had switched from crisis management to integrating the more than one million who arrived in 2015.
The news came as a second group of migrants were deported from Greece to Turkey under a controversial EU deal.