Amnesty has urged European nations to stop sending Afghans who do not qualify for asylum back to their home country. The human rights group said the policy risked exposing those affected to death and torture.
"In their determination to increase the number of deportations, European governments are implementing a policy that is reckless and unlawful," said Anna Shea, Amnesty International's Researcher on Refugee and Migrant Rights. She said governments were being "willfully blind" to evidence that violence was at a record high in Afghanistan.
Amnesty's call comes after a rise in violence in recent years as the Taliban gains ground across the country. The capital, Kabul, has been hit by a wave of suicide attacks.
"Amnesty International is calling on all European countries to implement a moratorium on returns to Afghanistan until they can take place in safety and dignity," the group said in a report published on Thursday.
There has been a steep rise in the number of Afghans being returned from Europe, either due to forced deportation or "assisted voluntary return," Shea said.
A return can be considered "voluntary" if the Afghan national is ordered to leave but the return is non-coercive, or when nationals fully decide on their own to return.
Amnesty said the total had almost tripled from 3,290 to 9,460 between 2015 and 2016. The Afghan government should not cooperate with sending people back, "despite its dependence on foreign aid," Amnesty said.
Afghans have been among the main groups of asylum-seekers in Europe, with 108,455 first-time asylum-seekers registered in the EU in the 12 months to the end of June, second only to Syrians, according to EU statistics agency Eurostat. But the numbers have fallen over the past year, down 24 percent between the first and second quarters and 83 percent between the second quarter of 2017 and the same period in 2016.
Germanyhas also led the way in forced deportations and "voluntary returns" of Afghan asylum-seekers in Europe over the past two years, the report said.
Germany to resume deportations to Afghanistan
Germany has sent 3,440 rejected Afghan asylum-seekers back to the country, more than any other EU state.