The Latest on Europe's immigration crisis (all times local):

6:50 p.m.

Hungary says it is planning to close its largest remaining reception center for migrants and refugees.

Janos Lazar, Prime Minister Viktor Orban's chief of staff, said Thursday that the complex in the town of Bicske, near Budapest, is no longer needed because the government has managed to stop the migrant flow.

The Bicske facility is supposed to hold about 500 people, but usually operates well above capacity. In December, Hungary closed the reception center in the eastern city of Debrecen, which could hold 1,200 people and opened during the 1990s wars in the former Yugoslavia.

Dozens of migrants a day are still arriving in Hungary, most by breaching the razor-wire fence built last year on the border with Serbia. Nearly all leave quickly for Germany and other Western destinations.

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5:25 p.m.

Greek authorities say they have returned 13 Syrian refugees to Turkey under an agreement between that country and the European Union to stop the flow of migrants and refugees to Europe.

Police said the six men, three women and four children were flown Thursday from the island of Chios to Adana in Turkey on a flight chartered by Frontex, the European border patrol agency. It said those returned had not applied for asylum and returned voluntarily.

Under the EU-Turkey deal, those arriving clandestinely on Greek islands from Turkey from March 20 face being returned to Turkey unless they successfully apply for asylum in Greece. The rate of returns has been slow after thousands applied for asylum. So far fewer than 500 people have been returned under the deal.