The provincial government media office in a statement said the NDS Special Forces conducted an operation in Zawa area of Khogyani district late on Sunday night.
The statement further added at least 34 militants including several killed militant figures were killed during the operation.
According to the provincial government, the NDS Special Forces also confiscated several weapons, munitions, and explosives during the operation which were later destroyed.
The operation was conducted as the militants had gathered in one of their hideouts and were planning major attacks, the provincial government added.
The statement by the provincial government also added that the local residents and security personnel did not suffer any casualty during the operation.
The anti-government armed militant groups including Taliban insurgents have not commented regarding the report so far.
This comes as counter-terrorism operations are underway in some restive districts of Nangarahr province against the militant groups attempting to destabilize the province.