around at all the devastation here, it's really remarkable one just all the damage that was done to the convention center building, the windows and doors smashed in. take a look at this car. it clearly caught fire. the windows smashed. it's crumpled to bits and we are standing two kilometers from the blast site. we're not even close to the epicenter. that gives you a sense of how strong this was and how scary this was for the 15 million people who live here in tianjin when they were jolts out of bed overnight. a lot of the people in the apartment blacks we visited earlier, there are shards of glass piled up on the ground. and people didn't have time to put on shoes and they were barefoot going through this. that's why hundreds of people are in the hospital, a lot with cuts because of the broken glass. there are helicopters in the air