QUETTA: Iranian border guards fired four mortar shells inside Pakistan near Balochistan's Panjgur district on Wednesday, security officials said.

A Levies official who requested anonymity told Dawn.com via telephone that Iranian forces fired four mortar shells in Soorap area of Panjgur district close to the Iranian border. He added that no human loss was reported as a result of the firing.

The mortar shells landed in a deserted area, however, they caused panic among the residents of Soorap, the official said.

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Tehsildar Maula Bakhsh and other officials reached the site and started an investigation into the incident.

The Levies official said security in the area was tightened in aftermath of the mortar attack by Iranian border guards.

The district administration informed the provincial government of Balochistan regarding the border violation by Iranian security forces, he added.

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Last year in October, Iranian border guards had fired six mortar shells at Pakistan's bordering town of Mashkail.

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Pakistan has accused Iranian forces of violating its territorial integrity and lodged protest with Iran in this regard several times in the last few years.

Pakistan shares a 900 kilometre long porous border with Iran and the two countries had last year decided to boost intelligence coordination to wipe out terrorists from the area.

Pakistani and Iranian officials had met in the Iranian city of Mir Java last year, to boost mutual cooperation and understanding to cope with the menace of terrorism at the border.