JACKSOVNILLE, Fla. - (Aug. 22, 2008) The Sun Cruz casino ship broke free after high winds and rough seas parted the mooring lines that were securing the ship to its berth in Mayport. Only two people were aboard the vessel when it broke free. The ship grounded in the St. Johns River east of the Jacksonville Pilots Station. Coast Guard crews are investigating the grounding to further determine the cause of the grounding and review the ship's heavy weather preparations. Coast Guard video by PAC Donnie Brzuska, PADET Jacksonville, Fla.