A spokesman for the Special Forces Unity Ahamd Jawid Salim confirmed that the senior Al-Qaeda network leader Abdul Rahim Al-Mesri was killed in Garamser district.
Salim further added that Al-Mesri was killed together with his six comrades during the operations conducted in Khon Bibi village.
He aid at least two foreign nationals hailing from Pakistan were also arrested during the operation.
According to Salim, the Afghan forces also confiscated four Ak-47 rifles, a pistol, three sets of radio, 4 mobile phones, 8 laptop computers, 21 hard disc drives, some documents including passports were confiscated.
He also added that the Afghan forces also destroyed eight Ak-47 rifles, 3 rockets, 6 hand grenades, 1 suicide bombing vest, and bomb making facility.
The anti-government armed militant groups have not commented regarding the report so far.
Helmand is among the relatively volatile provinces in South of Afghanistan where the anti-government armed militants are actively operating in some of its districts and often carry out terrorist related activities.