WWII Hell Ship Hōfuku Maru Found After 80 Years, June 19

Researchers have located the wreck of the Hōfuku Maru, a Japanese cargo ship that sank in September 1944 with around 1,200 British and Dutch prisoners of war trapped below deck. US warplanes mistakenly identified the unmarked vessel as a military target and fired four torpedoes. One struck the ship, which split in two and sank within minutes. Only about 200 weakened, sick POWs survived. The exact location remained unknown for 80 years until teams searched Japanese and US military archives and conducted sonar surveys and technical dives near Zambales province, Philippines.

How the Ship Sank in 1944

On September 21, 1944, the Hōfuku Maru sailed through the South China Sea as part of a convoy carrying 1,200 Allied prisoners. US warplanes, unaware the vessel was unmarked and carried POWs, launched four torpedoes at what they believed was a military cargo ship. One torpedo struck the hull. The vessel split in two and sank within minutes, trapping most prisoners below deck. Approximately 200 survivors were rescued from the water.

The Search Across Two Decades

The Hellships Memorial Foundation spent years searching for the wreck. Japanese military records were fragmented, and Allied reports provided only approximate positions. The breakthrough came in June 2025 when researchers uncovered a digitized Japanese document written by officers aboard the convoy’s lead ship. The document contained a detailed timeline and map showing the ship’s location. Armed with this information, teams conducted sonar surveys and technical dives near Zambales Province, off Luzon’s western coast.

Japan’s Unmarked Prison Ships

The Japanese military used 56 unmarked vessels, called “hell ships,” to transport more than 62,000 prisoners of war during World War II. Prisoners endured extreme conditions: dark metal holds, boiling heat, no sanitation, minimal food, and little water. Allied forces sank 19 of these vessels. The locations of five wrecks remain unknown. The discovery of the Hōfuku Maru represents a major recovery of war history.

Documentary and Legacy

The Hellships Memorial Foundation, supported by the Cultural Heritage Agency of the Netherlands and Discovery Channel, documented the discovery. Explorer Josh Gates led the expedition. The mission identified the final resting place of approximately 1,000 Allied POWs. A two-part season premiere of “Expedition Unknown” airs June 24 on Discovery Channel, telling the story of the men who died and waited 80 years to be found.

Final Thoughts

The discovery of the Hōfuku Maru ends an 80-year search and honors the 1,000 Allied prisoners who died in one of World War II’s forgotten tragedies. The wreck’s location, found through archived documents and sonar surveys, finally gives these servicemen a documented grave.

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