Breaking News Asiana 777 crashes in SFO...

Black smoke seen in landing over the bay..This Is A Developing Story...

A plane crashed while landing at San Francisco International Airport Saturday morning after its tail came off while it was touching down on the runway.
According to a witness, around 11:30 a.m. the plane was just about to land -- its landing gear had come down -- when the tail of the plane came off.
After wobbling for a minute, the aircraft flipped upside down, coming to a stop on runway on it's back, according to witness Kathy Muhler.
When it came to a halt, smoke was pouring from the aircraft. Fire crews responded minutes later...

It was flight 2114 from ICN..According to Redwood City Fire Department, three alarms have been called and responding crews are reporting passengers in need of burn treatment...At least two people were killed..

All Arrivals being diverted to OAK... Updated 4:39pm..DL FLT#241 from ATL cancelled.. AA FLT#177,85 cancelled from JFK...AA FLT#1807,1559 from LAX cancelled. SWA FLT#3152 from LAX cancelled.. UA FLT#733 from DEN cancelled.. Update 4:53pm...According to his Twitter feed, David Eun, the executive vice president of Samsung, was on the flight when it crashed.
"I just crash landed at SFO. Tail ripped off. Most everyone seems fine. I'm ok. Surreal..." tweeted Eun minutes after noon Saturday...

of course this is not 100% verified but we have been hearing that this was the result of a short landing, and the tail hitting the ground. Can anyone verify?