Coast Guard Cutter Flyingfish patrols up the Mystic River towards the Tobin Bridge on January 31, after suspicious packages were reported on the Longfellow and Boston University Bridges. A portion of the Charles River, from the Museum of Science to the Boston Harbor locks, was closed. Coast Guard Sector Boston also increased random patrols of ferry terminals and put law enforcement teams aboard some commuter ferries as a precautionary measure. U.S. Coast Guard photo by Petty Officer Etta Smith.