ISLAMABAD: Pakistan Army on Thursday lodged a strong protest with the United Nations Military Observer Group in India and Pakistan (UNMOGIP) over unprovoked firing by Indian troops on Aug. 4 along the working boundary at Sialkot's Pukhlian sector.

"UNMOGIP has been asked to conduct investigation of unprovoked Indian firing and shelling", an Inter-Services Public Relations statement said.

It said Indian forces deliberately targeted civilians with heavy weapons on Tuesday, which resulted in three dead and 22 injured.

Three people, a minor among them, had died in heavy mortar shelling by India in Bajwat and Pukhlian sectors of the Sialkot working boundary on Tuesday.

District Coordination Officer Dr Asif Tufail had confirmed the killings and said 22 other people, including eight women and six children, were injured on Aug. 4 from Indian firing. Besides, 65 domestic animals also died in the shelling.

Take a look: Three killed in cross-border firing along Indo-Pak Working Boundary.

The army had launched a similar complaint with the UN body in July also, in relation to incidents of unprovoked firing by Indian forces at Sialkot's Chaprar sector and in Rawalakot's Neza Pir sector along the Line of Control (LoC).

Kashmir is divided between India and Pakistan by the UN-monitored de facto border of LoC but is claimed in full by both the countries.

Ceasefire violations along the LoC and working boundary between Pakistan and India continue intermittently, with casualties reported on both sides.

Official sources say unprovoked firing by Indian troops on the working boundary has been continuing for the past many weeks.