Eight medics have been shot dead by Taliban gunmen in northeast Afghanistan.
Police found the bullet-riddled bodies of six Americans, one Briton and a German on Friday.
They were shot in the remote forested area of Badakhshan. The Taliban claims it carried out the killings.
The victims were part of a 12-strong medical team organised by a Christian aid group.
“This Nuristan eye care team left about just over two or two and half weeks ago to Nuristan, and they had actually finished their work there and were on their way back to Kabul. We had daily contact with them through satellite phones and the last time that we had contact with the team leader Mr. Tom that was on Wednesday evening.”
The Taliban accuses the medics of being Christian missionaries.
A spokesman for the militant group said bibles had been found with the foreigners.
But that claim has been denied by International Assistance Mission, the NGO the doctors were working for.