San Francisco plane crash 'happened in a flash'

There was no warning ahead of the crash landing of an Asiana plane at San Francisco airport a passengers has said.

Ben Levy helped his fellow travellers from the plane after their flight from South Korea.

He told reporters that after the initial chaotic shock of what had happened passengers calmly made their way away from the plane.

Fellow passenger Veddpal Singh said that as soon as the plane touched down he thought something terrible had happened.