[A Syrian man looks on his phone inside the Souda camp, Chios, Greece , on Wednesday, Jan. 13, 2016. A key international monitor says migration to Europe is keeping up its high pace this year with more than 23,000 people reaching Greece and Italy via the Mediterranean already this month. Spokesman Joel Millman of the International Organization for Migration says figures collected by Wednesday show 22,895 people have reached Greece this year and another 260 reached Italy. IOM says 58 people have died in attempted crossings. (AP Photo/Petros Giannakouris)]BRUSSELS (AP) — The European Union's top migration official says efforts to manage the refugee emergency are not working and that more countries are tightening border security to cope with the influx.