At least ten security officials were killed and 11 others were wounded in separate attacks in Sar-e-Pul and Uruzgan provinces, local authorities said.
Taliban attacked a security check post in the Gosfandi district in Sar-e-Pul province on Tuesday night, said Asadullah Khuram, a member of the provincial council.
In the gun battle that followed six personnel and as many attackers were killed, he added.
However, the local officials and Taliban have not yet commented over the attack.
Later, at least four security force members were killed and three were injured in a car bomb attack on a security outpost in the city of Tarin Kot in Uruzgan province in the early hours of Wednesday, provincial governor Mohammad Omar Shirzad said.