People have been desperately tying to escape Afghanistan - after the Taliban entered the country's capital.
Militants have been pictured in the presidential palace.
The government's collapsed, with President Ashraf Ghani fleeing.
Dr Ramiz Alakborov, the UN Secretary General's Deputy Special Representative in Kabul, has issued an appeal to fighters.
"[We need] complete cessation of military hostilities on the entire territory of the country, and the provision of an immediate and unimpeded access to all of the locations for all the humanitarian teams"