Migrants situation at the border crossing between Hungary and CroatiaArmy personnel arrive to assist border authorities during an influx of migrants at the border crossing between Hungary and Croatia at Beremend , 237 kms south of Budapest , Hungary , 18 September 2015 . Hungary on 15 September sealed the last gap in the barricade along its border with Serbia , closing the passage to thousands of refugees and migrants still waiting on the other side and some groups decided to pass over Croatia . Hungarian Prime Minister Viktor Orban told state radio on 18 September that work began to extend a fence already built along the border with Serbia to the border with Croatia . He added that 1 , 600 soldiers will be working on the first 42 - kilometre segment by the weekend . Hungary ' s border with Croatia is 355 kilometres long . EPA / BALAZS MOHAI HUNGARY OUT ▶ [ 현장 영상 ] ' 아이 들 을 던진 이유 '… 중국 유치원 화재 ▶ [ 오늘 의 핫 화보 ] ' 전쟁 가능 法 ' 日 안보 법안 강행 … 아베 정권 ' 비판 고조 ' < 저작권자 ( c ) 연합뉴스 , 무단 전재 - 재 배포 금지 >