By Imy Brighty-Potts Two crew members on a Holland America cruise ship have tragically died during an unspecified “incident” in the ship’s engineering space, the cruise line has announced. The unidentified crew members died on Friday while the Florida-based Nieuw Amsterdam was at Half Moon Cay in the Bahamas, cruise company Holland America said in a statement. Authorities were notified and the cause of the accident is being investigated, the cruise line said, while crew members were being offered counselling. “All of us at Holland America Line are deeply saddened by this incident and our thoug…