At Least 44 Dead After 2 Devastating Explosions in Tianjin, China

A fire at a warehouse storing hazardous material led to the blast that left entire neighborhoods on fire.
2:39 | 08/13/15

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Transcript for At Least 44 Dead After 2 Devastating Explosions in Tianjin, China
We want to get right to the devastation overseas. The massive explosions rocking one of China's biggest cities. We want to show you the view from above. Drone footage. Of the aftermath. Just incredible, robin. These images emerging of the people racing to rescue survivor this is morning. A police officer carrying that man to safety. Thousands forced to flee. A row of cars completely burned out. Just the shells remain. The streets there. Bob woodruff is on the scene for us this morning. Bob, good morning. Reporter: Good morning, David. You can see the smoke. Toxic chemicals behind me. This morning, the rescuers are searching for survivors. This deafening explosion -- rocking this major city illuminating the night sky. The horror beginning just before 11:00 P.M. A fire at a warehouse storing hazardous material in the Chinese port city of tianjin. Firefighters rushing in. 30 minutes later. Two massive explosions. This man caught on surveillance at the moment of the impact. At least 44 people dead, 12 of them firefighters. Chaotic scenes as the hundreds of wounded flood hospitals around the city. This morning, the death toll is rising. Rescuers racing against the clock to find survivors. This man showed us where he was struck in the back with shrapnel. You were hit by it? On the streets, the damage is stunning. Buses decimated. A mile away from the blast, top floors filled with shattered windows. Oh, my god. And this is where the workers were sleeping last night. Let me take you 360 degrees around. This is like ground zero. All of these homes of the migrant workers destroyed. Cell phone video from a high-rise capturing the massive fireball shows just show far-reaching the eruption was. It is estimated to be equivalent to 21 tons of dynamite. Could be felt up to six miles away. Monica Andrews, an American living in tianjin, describing the moment of impact. I could just feel my whole building shake. I thought it was an earthquake. Reporter: They don't know what caused these explosions. Just a short while ago, we saw another plume of smoke. As for the huge blasts last night, so powerful they've been registered as earthquakes. David? That is incredible. All right, bob. We appreciate it. Now to the announcement of

This transcript has been automatically generated and may not be 100% accurate.

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