Pakistani officials say at least nine civilians have been killed by an artillery shell fired from Indian-administered Kashmir that hit a passenger bus in the Pakistan-administered part of the disputed region.
The bus was travelling in the town of Lawat in the Nellam Valley to the northeast of Muzaffarabad when it was struck by the shell on November 23.
Two other civilians also were killed by a shell in the barrage that struck their home in a village near Kashmir's de facto border.
Pakistani officials say at least 11 people were also wounded by the artillery attack.
Pakistan's army said its troops on November 23 were firing back against Indian military positions in the area, which is in the upper belt of the valley straddling Kashmir's de facto border.
An Indian military spokesman said Pakistan's army initiated "indiscriminate" fire on Indian army posts nearby.
Pakistan and India have recently been trading fire across the line of control that divides Kashmir between the two nuclear-armed countries.
Tensions have intensified since militants attacked an Indian army base in Kashmir in September.
India alleges the militants were supported by Pakistan, but Islamabad denies the charges.