The airstrike took place on Tuesday. Earlier, media reported that it claimed lives of 16 civilians and the same number of Taliban members. According to UNAMA, the airstrike was carried out by international military forces during a joint operation with Afghan counterparts.
"Preliminary findings from the UN Assistance Mission in Afghanistan (UNAMA) indicate that as many as 23 civilians were killed and three injured Tuesday in an airstrike in Garmser district of Helmand province during operations conducted by pro-government forces against Taliban in the area," UNAMA said late on Thursday.
Noting "a sharp increase in civilian casualties from aerial attacks" in the first nine months of the year, UNAMA called on all conflicting sides to "strictly adhere to their obligations under international humanitarian law to take all feasible measures to protect civilians."
Earlier, at least 16 civilians and 16 Taliban militants were killed in airstrikes carried out by foreign forces in Afghanistan's southern province of Helmand.
Meanwhile, the Afghanistan government is striving to achieve peace in the country and has been in negotiations over a ceasefire with the Taliban movement that was supposed to be prolonged till 19 November.
*Taliban is a terrorist group banned in Russia