( CNN ) -- The Afghan government will investigate reports of civilian casualties in a recent NATO bombing , the office of President Hamid Karzai said Thursday . Karzai has appointed a delegation to investigate the bombing in Kunar province . According to reports , four children , a woman and a man were killed in the incident , the president 's office said . NATO forces led by the United States have been battling the Taliban and its al Qaeda allies in Afghanistan for a decade , since al Qaeda 's 2001 terrorist attacks on New York and Washington . A U.S. invasion swiftly deposed the Taliban , which had ruled most of Afghanistan before the attacks , but the fundamentalist Islamic movement regrouped as a guerrilla movement battling allied troops and Karzai 's government . Already-strained ties among Pakistan , Afghanistan and the United States were aggravated by a November airstrike that killed 24 Pakistani troops at border posts along the Afghan frontier . Karzai has chafed at American raids that have killed Afghan civilians , while his critics accuse him of overseeing a corrupt administration and a 2010 election that international observers said was riddled with fraud . International troops are scheduled to be withdrawn in 2014 . Karzai said the allied force has been able to provide political stability for Afghanistan over the past 10 years , but security for individual Afghans `` is yet to come . '' Afghan civilians have also been killed by militants deploying suicide bombers or roadside bombs .
Some reports say civilians were killed in a recent NATO bombing . The Afghan president orders an investigation . The incident could put more strain on relations between Afghanistan and NATO forces .