In this photo taken Friday, Feb. 13, 2015, a member of the German police sits in a vehicle as she uses a thermal camera to scan a portion of the Serbian border with Hungary in Hajdukovo, 150 kilometers north of Belgrade, Serbia. (AP Photo/Marko Drobnjakovic)
In this photo taken Friday, Feb. 13, 2015, a member of the German police sits in a vehicle as she uses a thermal camera to scan a portion of the Serbian border with Hungary in Hajdukovo, 150 kilometers north of Belgrade, Serbia. (AP Photo/Marko Drobnjakovic)
AP Images Blog 