Afghan security forces have killed 64 militants since the start of an operation on Thursday.

The country's defense ministry says troops backed by helicopter gunships conducted clean-up operations in the northern city of Kunduz.

On Monday, the Taliban launched coordinated attacks and captured most of the city. A Taliban shadow governor for the northern Takhar province named Qari Shamsuddin was among the militants who were killed.

Security forces also destroyed eight militant motorcycles during the raids.