At least 100,000 people have fled their homes as Taliban fighters and government forces clash to control for Afghanistan’s northern city of Kunduz.
The United Nations said on Saturday that 15,000 families had registered for aid since the fighting began.
The World Food Programme has prepared food packages as survey teams work to verify how many families needed help.
Commercial flights from Kabul to Kunduz, the only passenger air link to the northern city, have also been suspended.
The battle in Kunduz began on April 24 after Taliban militants announced its spring offensive.
Thousands of additional soldiers have been deployed to the city.
The battle is seen as a test for the Afghan forces, after the coalition combat mission in Afghanistan ended last year.
The clashes continue after the government and the Taliban failed to reach a ceasefire agreement during the informal talks in Qatar last weekend.