The Hungarian authorities had decided to strengthen its border security following a phone conversation between Hungarian Prime Minister Viktor Orban and Turkish President Recep Tayyip Erdogan, the government said on Saturday. On Friday, Orban and Erdogan discussed the situation in Syria as well as the migrant crisis.
"Mr Erdogan informed the Hungarian Prime Minister that there was enormous pressure on Turkey, and therefore they would no longer be able to detain some of the migrants currently in their territory," the government said in a statement.
Later on Friday, Orban convened a meeting of his security cabinet.
"At the meeting, they reviewed reports of the Hungarian security services, and then decided to reinforce the protection of the Hungarian borders and to closely monitor proceedings on the Balkans migration route," the government said.
Turkish President Recep Tayyip Erdogan has said that his country opened its borders to Europe to Syrian refugees citing the lack of promised assistance as the reason.