By the end of the year, authorities plan to add another 64km to a border wall intended to stop refugees arriving on their way to west
Afghans who manage to make the weeks-long journey through Iran on foot to the Turkish border face a three-metre high wall, ditches or barbed wire as Turkish authorities step up efforts to block any refugee influx into the country.
The beefed up border measures in Turkey, which already hosts nearly 4 million Syrian refugees and is a staging post for many migrants trying to reach Europe, began as the Taliban started advancing in Afghanistan and took over Kabul last week.