Chasing 215 for victory against Punjab, Hyderabad reached the target with five balls to spare at their home
The development came days after a rare aerial dogfight between India and Pakistan over Kashmir ignited fears of an all-out conflict, with world powers rushing to urge restraint.
"The Pakistan navy stopped an Indian submarine from entering our territorial waters," a naval spokesman said in a statement.
He said "the Indian submarine was not targeted in line with the government's policy of maintaining peace".
It was the first such incident since 2016, when Pakistan said it had "pushed" an Indian submarine away from Pakistani waters.
The spokesman did not give further details, including when or where the submarine was detected. It was also not clear if they meant the 12 nautical mile (22 kilometre) territorial waters limit or the broader 200 nautical mile (370 kilometre) exclusive economic zone.
The navy also released what it said was video of the submarine, with the grainy black and white footage showing only what appeared to be a periscope above water. The timestamp on the video clip shows it began at 8.35 pm on Monday.
There was no immediate comment from Indian officials.
Chasing 215 for victory against Punjab, Hyderabad reached the target with five balls to spare at their home
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