The National Transportation Safety Board, which is investigating Saturday's deadly crash of a Mexican Navy tall ship into New York's Brooklyn Bridge, is focused on the ship's guide tugboats and sudden acceleration.

By Maria Tsvetkova, Karen Freifeld and David Shepardson NEW YORK (Reuters) - The investigation into why a Mexican Navy training ship struck the Brooklyn Bridge on Saturday, shearing the top of its masts,

The Mexican ship that struck the Brooklyn Bridge was underway for less than 5 minutes before its masts crashed into the historic span, and radio calls indicating it was in distress went out only