The officials further added that the deceased general, General Khan Agha, was serving as deputy commander of the 205th Atal Corps of the Afghan National Army.
Provincial governor spokesman Samim Khpolwal confirmed the report and said Gen. Agha was killed in an attack by two militants in Dand district.
However, another security official said the army general was killed after a group of three militants attacked him as he arrived in his guesthouse.
The official further added that Gen. Agha was initially injured in the attack and succumbed to his injuries on the way to hospital.
Gen. Agha is the second top army general killed in militants attack in southern Afghanistan within the past two months.
Another senior commander of the Afghan National Army (ANA) Gen. Atamir Agah was martyred in an explosion in southern Helmand province of Afghanistan earlier in the month of February.
Gen. Atamir Agah was serving with the 3rd Brigade of 215 Maiwand Corps of the Afghan National Army in the south.