Up to 25 mortars were fired from Afghanistan side of the Pak-Afghan border which landed in Pakistan on Saturday, security officials said.
An official said that Afghan border police fired the artillery rounds from Tarkhopi Camp area which landed in a Pakistani village.
The troops at the post confirmed that they too had heard the munitions landing.
No loss of life was reported in the cross-border aggression.
Tensions between the two neighbouring have simmered in the past as both accused each other for cross-border fire.