"Pakistani troops targeted the Indian Army posts and civilian areas along the LoC in Poonch sector with small arms, automatic and mortars at 1655 hours," an army officer said.
He said the army was retaliating strongly and effectively to the ceasefire violation.
One civilian has been killed in the ongoing firing, a senior police officer said.
On December 16, Pakistan had violated ceasefire by targeting Indian positions along the LoC in Balakote sector of the same district.
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In the cross-LoC attack by suspected Pakistani terrorists, three Indian soldiers were killed on November 22, with body of one of them being mutilated. Following the incident, Indian Army had vowed a heavy "retribution".
The 2003 India-Pakistan ceasefire agreement has virtually become redundant with over 300 incidents of firing and shelling along the LoC and IB in Jammu and Kashmir by Pakistani troops.