On 3 October 2024 it was reported that HMS Trooper was discovered at a depth of 253 metres (830 ft) in the Icarian Sea in Greece.

She also damaged two other enemy vessels, and unsuccessfully attacked the Italian merchant Belluno (the former French Fort de France).

[4] HMS Trooper was discovered at a depth of 253 metres (830 ft) in the Icarian Sea, north of the island of Donousa, in Greece.

The submarine, found in three distinct sections (bow, mid-section, and stern), had likely been sunk by a German EMF mine containing 350 kilograms (770 lb) of Hexanite.

This discovery, led by Greek researcher Kostas Thoctaridis, resolved an 81-year-old mystery, bringing closure to the families of the 64 crew members lost during the submarine's final mission.