ISLAMABAD, Pakistan - On Tuesday, the Pak military's media wing revealed that Pakistan Navy spotted and barred an Indian submarine from entering Pakistani waters on Oct. 16.
The Inter-Services Public Relations (ISPR) said the navy demonstrated "unremitting vigilance and professional competence" in determining and preventing the Indian vessel's attempted entry.
"During the prevailing security milieu, a strict monitoring watch has been kept by Pakistan Navy to safeguard maritime frontiers of Pakistan," the ISPR said.
It further said that the incident on Oct. 16 was the third time the Pakistan Navy's long-range maritime patrol aircraft has detected and tracked an Indian naval submarine.
"The recent incident reflects the deplorable Indian machinations vis--vis commitment and resolve of Pakistan Navy to defend maritime frontiers of the motherland."
The navy discovered and blocked a similarly attempted infiltration by an Indian submarine in March 2019. "The Pakistan Navy used its specialized skills to ward off the submarine, successfully keeping it from entering Pakistani waters," a statement from the navy's spokesperson said.
In November 2016, another effort was made when an Indian submarine was tracked and driven clear of Pakistani seas.
The UN Convention on the Law of the Sea forbids a state from conducting maneuvers or exercises in another coastal state's exclusive economic zone (EEZ) or continental shelf without its approval. EEZ refers to an area of coastal water and seabed within a certain distance of a country's coastline that cannot be accessed without prior permission or information.