Fall of Saigon, mass evacuation Crowd of people and traffic on street as they try to leave the city as the North Vietnamese take over Saigon / people, including the ITN Television News crew, climbing into the US embassy compound / people packed into the grounds of the US embassy compound / US military helicopters landing to evacuate people to ships in the South China Sea, US Marines / people boarding helicopters SOUTH CHINA SEA: helicopter landing on US aircraft carrier. Fall of Saigon, mass eva