An Argentine submarine was caught at South Georgia

Did Argentina attempt to attack the British fleet with submarines during the Falklands War?

There was a submarine threat, but one boat was caught on the surface at South Georgia and stopped by gunfire before it could press the attack.

One Argentine boat reached a position from which it could threaten Royal Navy forces during the Falklands War. It was caught on the surface at South Georgia before the danger developed into a successful submerged attack. The recollection identifies gunfire and initially suggests mortars and machine guns, then accepts that a Carl Gustaf recoilless rifle may have been the weapon being remembered. That detail remains uncertain. The incident distinguishes the existence of an Argentine submarine threat from a successful attack on the main British fleet.