reportsr responded that that serbia is not a member of the european union, where most of the migrants want to go. reporter: this is how migrants are living in belgrade. sleeping rough with temperatures dropping as low as -13. the people have a choice. the serbian government says want and food is available in official shelters. many fear deportation and keep trying to cross illegally into countries.other eu this is the alternative. 6000 migrants in official centers across the country waiting for a chance to be among 20 people a day granted asylum by hungry. on the streets, the 8-year-old is a load. his other brother to attain on the croatian border. is he ok? >> he is ok. he has a little flu and chest problems. >> he will at least be safe and warm. reporter: extremely ill, aid workers try to convince him to leave. >> that is not uncommon. 10.ave seen children 8, 9, i was speaking to a 12-year-old afghan boy in the warehouse that months.efore three he is waiting for a call from a smuggler, because he believes that is his best option. isorter: two days on, aziz still sleeping rough in th