The owner of a tall ship that crashed into four other boats in Rhode Island after a seafood festival is blaming the incident on a dock line that became entangled on its two propellers. The SSV Oliver Hazard Perry crashed Sunday in Newport Harbor. No one was injured. On Monday, the 200-foot (61-meter), three-mast ship was still blocking a channel into the Newport Yacht Club, preventing a cruise ship from disembarking passengers. The ship is operated by a nonprofit, Oliver Hazard Perry Rhode Island, which runs educational programs. The group said Monday the engine lost power after its propellers became entangled but did not run aground.