ROMANS: Spectacular video of a TransAsia turboprop plane crash landing overnight, crash landing into a river in Taiwan. This is dashcam video. It's just remarkable, the final seconds of this captured here. We've got it courtesy of Taiwan affiliate TVBS. Fifty eight passengers and crew were on board at least 21 people killed. Many more still unaccounted for this morning. I want to bring in David McKenzie monitoring the rescue effort live from Beijing. David, in the rescue, you can see there are a couple little children, a baby, sort of stunned passengers being led out of the tilted-over body of this plane. And we know there are fatalities.</s>DAVID MCKENZIE, CNN CORRESPONDENT: We know there are fatalities, at least 21, extraordinary that anyone survived this horrible crash which happened, as you say, in Taipei just after takeoff. This turboprop plane was due to have about a one-hour flight, mostly packed with tourists including more than 30 from the Chinese mainland. This is a very popular route for Chinese when it came crashing down, slamming into a highway, flipping over essentially and landing into a river near Taipei. And so certainly as they rushed to the scene in their boats and any other means necessary to get at the people. They were able to rescue at least 16 people with varying degrees of injury. Incredible they made it out and still the search goes on as nightfall hits Taipei. Obviously family members are very distraught. Many of them angry, saying that the airline didn't give them enough information about what was happening. The airline itself is apologizing to both the passengers and the crew. And this is the second deadly crash of TransAsia airline in just about seven months -- Christine.</s>ROMANS: All right, David McKenzie for us in Beijing monitoring that rescue effort of that flight, that TransAsia flight -- John.</s>BERMAN: All right, growing concerns this morning on the threat of ISIS here in the United States. The FBI opens up to CNN about possible sleeper cells. That's next.
TransAsia Plane Crashes into Taiwan River