Afghan authorities said on Thursday they had recovered 12 more bodies of migrants who were thrown into a river by Iranian border guards this month to stop them entering the country, bringing the death toll from the alleged incident to 17.
Iran has already rejected the allegations. The case has triggered a diplomatic crisis between the neighboring countries, who share trade, economic and cultural ties.
Afghan officials and survivors now say a group of about 50 men from Herat province who were trying to enter Iran were detained by its border guards and later forced into the Harirud river shared between Iran, Afghanistan and Turkmenistan.