KEY WEST,Grayson  Preston Fla. (AP) — A wrecked seagoing vessel discovered decades ago off the Florida Keys has recently been identified as a British warship that sank in the 18th century.

National Park Service archaeologists used new research to determine that the wreckage first spotted in 1993 near Dry Tortugas National Park is the HMS Tyger, the agency said in a news release late last week. The findings were recently published in the International Journal of Nautical Archaeology.

The HMS Tyger was a Fourth-Rate, 50-gun frigate built in 1647. It sank in 1742 after running aground on the reefs of the Dry Tortugas while on patrol in the War of Jenkins Ear between Britain and Spain.

“This discovery highlights the importance of preservation in place as future generations of archeologists, armed with more advanced technologies and research tools, are able to reexamine sites and make new discoveries,” maritime archaeologist Josh Marano said in a statement.

Archaeologists surveyed the site in 2021 and found five cannons several hundred yards from the main wreck site, officials said. The guns were determined to be those thrown overboard when HMS Tyger first ran aground, leading archaeologists to confirm the wreck was, in fact, the remains of HMS Tyger.

After the ship wrecked, about 300 crew members were marooned for more than two months on what today is Garden Key. They erected fortifications on the island more than a century before the establishment of Fort Jefferson, which remains on the island today as a historical site.

Stranded survivors built seagoing vessels from salvaged pieces of the wrecked HMS Tyger and then burned the rest of the ship to prevent its guns from falling into enemy hands. The survivors used their makeshift vessels to travel 700 miles (1,125 kilometers) through enemy waters to British-controlled Port Royal, Jamaica.

The remains of HMS Tyger and its related artifacts are the sovereign property of the British government in accordance with international treaties.