The incident took place in Charsi area of Khwaja Bahauddin district of the province when Taliban insurgents began shelling the check post.
According to Mohammad Farid Zaki, the provincial deputy governor, the soldiers were killed after the check post was seized by the Taliban, following a 12 hour-long battle.
Reports suggest the check post came under control of the Taliban when the soldiers lacked ammunition.
However, Khalil Asir, the provincial governor spokesman said clashes between Afghan security forces and the Taliban insurgents are ongoing and the group has suffered casualties as well.
Officials; meanwhile, said the insurgents planted bombs around the check post so the security forces could not receive support.
Following the incident, a number of civil activists accused the local officials of ‘incompetency’, saying if the situation continues as it is, the Taliban might spread activities to other districts in the province.