This photo provided by Antonette Edwards shows what a federal aviation official says was an Asiana Airlines flight crashing while landing at San Francisco airport on Saturday, July 6, 2013. It was not immediately known whether there were any injuries. (AP Photo/Antonette Edwards )
Eyewitnesses to the deadly plane crash at San Francisco International Airport turned to social media to post information, images and videos from the scene.
The following is a snapshot of what they saw: