A security outpost in Jawand district in the northwestern province of Badghis fell to the Taliban following their attack on Thursday night, a security official who wished not to be named said.
Seven Afghan Army personnel were killed in the attack, the official said.
The official added that the Taliban has also feared casualties in the attack, but the exact number is not clear so far.
Meanwhile, Mirza Ali Bidaar, the district governor of Qadis in Badghis, said that four Taliban fighters were killed during clashes in Qadis Thursday evening.
The district governor said that one security force member was also killed in the attack.