The Afghan government says it was wrong to have claimed to have captured two senior Taleban commanders during fighting for the town of Musa Qala.
On Sunday the defence ministry said it had captured Mullah Matin and Mullah Rahim, both well-known Taleban commanders in Helmand province.
But now the ministry says that it was a case of mistaken identity.
A ministry spokesman said no Afghan soldiers were killed in operation and that only four civilians died.
Afghan forces - with British and American support - say they have now secured the centre of Musa Qala after going through it street by street.
Local people, contacted by phone before a mobile communication mast was destroyed in bombing, said the losses sustained by Afghan, British and American troops were far higher than they had admitted.
The BBC's David Loyn in Kabul says that Afghan soldiers suppor
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