The SS United States, a historic ocean liner, sank off the coast of Florida on Wednesday night after slowly submerging over many hours. Intended to serve as an artificial reef, it is now the world's largest such structure, aimed at attracting marine life and diving enthusiasts. The ship had been out of commission for decades, spending 30 years docked in Philadelphia before its relocation to Florida.
Watch: Moment historic ship sinks off the coast of Florida (this article)2 articles from BBC on this story