GALVESTON, Texas — Researchers say a shipwreck has been discovered 150 miles off the coast of Galveston that could yield insight into Texas’ fight for independence.

Officials with Texas A&M University at Galveston and Texas State University say the recovery expedition of the two-masted ship concluded Wednesday. It may have sunk in the Gulf of Mexico 200 years ago.

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The ship was some 4,300 feet below the surface. Items discovered aboard the vessel include muskets, swords, cannons and clothing.

Scientists say it may have been a warship or a vessel transporting arms and soldiers. It may have supported the Mexican army during the fight for Texas independence or been sailing to provide arms to the Texans.

A Shell oil and gas survey crew first detected the wreck in 2011.