An Asiana Airlines Boeing 777 has crashed while landing at San Francisco International Airport, according to the U.S. Federal Aviation Administration.
It is uknown at this time whether anyone on board the aircraft has been injured.
There are reports the plane was travelling from Seoul, South Korea.
In a video clip posted to YouTube and purportedly showing the crashed plane, smoke can be seen billowing from a silver-coloured jet on the tarmac. Passengers could reportedly be seen jumping down inflatable emergency slides.
The South Korea-based airline's website says its Boeing 777 can carry between 246 to 300 passengers.
More to come
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