The top US commander in Afghanistan says the recent airstrike on a hospital in the northern city of Kunduz was a mistake.
General John Campbell told the US Senate armed services committee that it was a US decision to conduct the air strike and that the hospital was "mistakenly struck".
Gen Campbell's evidence came three days after the air strike on the medical clinic killed at least 22 people and wounded dozens more.
The clinic was operated by the medical charity Doctors Without Borders.
Gen Campbell said on Monday that the airstrike was requested by Afghan forces who reported being under Taliban fire.
