The National Directorate of Security in a statement said the operation was conducted in the vicinity of Nawzad district of Helmand province.
The statement further added that one of the architects of the attack was killed and seven others were arrested during the operation.
According to National Directorate of Security, the detained suspects have been identified as Gul Agha son of Noor Mohammad, Mohammad Reza son of Gul Mohammad, Nemat son of Majnoon Agha, Mohammad Sadiq son of Haji Amanullah, Abdul Basir son of Nemat, Esmatulah son of Haji Mohammad Shah, and Khan Mohammad son of Lal Mohammad.
The NDS Special Forces also confiscated some weapons during the same operation, the National Directorate of Security said.
The anti-government armed militants including Taliban have not commented regarding the operation so far.
Source : Afghan Voice Agency(AVA)