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attack in northern Takhar province on Wednesday night, a security source said.
In Khwaja Bahauddin district the Taliban attacked the public uprising forces in several areas which led to festivities that lasted for several hours, the source said.
"At least 13 public uprising forces were killed and four others were maimed," he said, adding that "a border policeman was also killed and two others were maimed in a clash with the Taliban after they came to support the public uprising forces."
Local security officials have not yet commented on the festivities.
The Taliban has not commented on the attack.