A statement by MoD said the militants launched a coordinated attack from the North of the city through Regi outpost towards the 70th Division in the early hours of Tuesday morning.
The statement further added that the national defense and security forces have started operations along the 70th division as well as the western gate of the city and 517th lane in response to the attack.
According to MoD, at least eight militants have been killed during the operations so far and at least three others have sustained injuries.
The defense ministry also added that the Afghan commandos and Air Forces have also started operations to clear the areas where the Taliban insurgents have taken positions.
In the meantime, the provincial council officials are saying that clashes are underway in some parts of the city but the militants have not managed to take control of any key compound so far.
The Taliban however claims that several governmental compounds have collapsed during the attack.