Due to severe political instability and outbreaks of fighting between various Afghan groups, travel to Afghanistan is strongly inadvisable at present. There is a United Nations presence in the country, with aid mission flights in operation. Airport facilities in Kabul have been expanded and new airports have been built near the border. At the time of writing, the airport was closed and all flights were being directed to a military airbase in Kabul. Overland travel is currently very dangerous in some parts of the country, and the official advice is that it should be avoided.
Buses operate along the Asia Highway, which links Afghanistan to Iran and Pakistan.