Surge of migrants in CroatiaCroatian police officers stand guard as migrants wait at the railway station of Tovarnik , Eastern Croatia , near the Serbian border , 19 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 / ZOLTAN BALOGH HUNGARY OUT ▶ [ 현장 영상 ] 개 의 , 개 에 의한 , 개 를 위한 영국 ' 강아지 패션쇼 '▶ [ 오늘 의 핫 화보 ] ' 벌 에 쏘이 면 가장 아픈 곳 은 ? 포유 류 소변 시간 은 ? '… 엉뚱 연구 수상식 < 저작권자 ( c ) 연합뉴스 , 무단 전재 - 재 배포 금지 >