Salvage crews have removed a large portion of a commercial jet from the Potomac River near Washington's Reagan National Airport on Monday, five days after a midair collision last week that killed 67 people. Authorities have said the operation to remove the plane will take several days and they will then work to remove the military helicopter involved in the crash. The crash between the American Airlines jet and an Army helicopter over Washington DC on Wednesday was the deadliest US air disaster since 2001. Authorities have recovered and identified 55 of the 67 people killed in the crash and Washington, DC, Fire and EMS Chief John Donnelly has said they are confident all will be found. Crews early Monday could be seen aboard a vessel with a crane. More than 300 responders were taking part in the recovery effort at any given time, officials said. Two Navy barges were also deployed to lift heavy wreckage. Divers and salvage workers are adhering to strict protocols and will stop movin