at least 119 people died in an explosion and a fire at a poultry slaughter house in china. some of them reportedly trapped by locked gates. this is a horrific story, raising new and urgent questions about working conditions in china. our senior international correspondent, nic robertson, is on the scene for us in northeast china. nic, what do we know, what happened? reporter: wolf, the stories that are emerging from here, people are saying some of the doors when they were trying to escape the building, there were about 300 workers inside the plant almost 24 hours ago to the minute when the fire began. about 100 managed to escape, some of them with very harrowing accounts. and what they ve been saying is as they tried to get out, only one exit was opened. several doors were locked. people described an explosion and the place filling with black smoke, the lights going out. if i just step out of the way a little bit here, you can see
tack cal operation center two more agents. attackers all around. inside the main residence the attackers come in here and they ransack the place and go for the locked gates. they look inside it s dark they can t see anything. then they try the locks. they can t open it up. inside agent ubin has a gun on them ready to shoot if need be. as lieutenant colonel andrew woods says the safe haven is only safe for a short time. it s a delay for an aggressor but it has to rely on someone to come in and rescue him as well. that someone might have been his elite security team but they have been pulled out of the country. either way stevens smith and ubin was trapped by die bog cal killers who poured diesel fuel around the house light it and leave. when we come back the trapped americans try desperately to escape.