Immediately following a deadly U.S. airstrike on a Doctors Without Borders hospital in Kunduz, Afghanistan’s national security advisor told a European diplomat, “We are without doubt, 100 percent convinced the place was occupied by Taliban,” the Associated Press reports. There is still no evidence to support this claim.

Speaking to the Associated Press, the head of Doctors Without Borders has shunned the possibility that the attack earlier this month by American forces on a hospital the international medical charity ran in the northern Afghan city of Kunduz was a mistake.

President Obama has officially apologized for the disastrous airstrike that killed 22 people, including a dozen doctors and three children, at a hospital in Kunduz, Afghanistan last weekend.