A Boeing 777 undershot the runway landing at SFO from South Korea.
Passenger David Eun, a Samsung executive, tweeted this photo after exiting the downed aircraft. https://path.com/p/1lwrZb
This is what a Boeing 777 landing at SFO is supposed to look like:
SFO airport tweets that 2 runways are now open:
2 runways have reopened. Please check with your airlines for updated arrival and departure information.