The Taliban militants and Afghan security forces suffered heavy casualties during a clash in Ghor province, the local officials said.
The incident took place late on Sunday night in Kotal-e Salah area of Shahrak Ghor district.
The district administrative chief of Shahrak Ghor Mohammad Kabiri said the Taliban militants attacked the security posts in Kotal-e Salah area for the second time on Sunday night.
Kabiri further added that 11 security personnel lost their lives during the clash and 5 others sustained injuries.
The Taliban militants also set two Humvee Armored Personnel Carriers on fire, Kabiri said, adding that the security forces also killed 15 Taliban militants during the clash.
According to reports, the Taliban militants and security personnel also suffered casualties during a clash in the same area two days ago.