Talking to Geo News, CPLC Chief Ahmed Chennai said that incident took place at 8 pm local time.
On the other hand, Naval Chief Admiral Noman Bashir denied any attack on PNS Babur by Somali pirates.
PNS Babur was sent to escort MV Suez.
Somali pirates had freed 22 crew members, including Pakistanis, Indians, Sri Lankan and Egyptian of the hijacked vessel after a ransom of $2.1 million was paid to them.