LEON HARRIS, CNN ANCHOR: We're just getting late word on a new development in a hostage crisis taking place in the Philippines that we have been following here on CNN. Let's go now to our Maria Ressa. She's reporting live now on the telephone from Manila. Maria, what have you learned?</s>MARIA RESSA, CNN CORRESPONDENT: Well, Leon, gunshots were fired about 4 1/2 hours ago and it's still going on now between Philippine security forces and Abu Sayyaf, the kidnappers of these 21 hostages. Among them, are 10 international tourists. What apparently happened is that the bamboo hut where they're being kept was surrounded by Philippine security forces. Their orders were to basically keep anyone from coming in and keep those who are inside that area from going out. They've cordoned off the area. What happened, was some of the Abu Sayyaf kidnappers tried to leave the area, and that was when the first shots were fired. It's is still unclear exactly how the hostages have been effected. To show you just how fluid the situation, the chief government negotiator heard from CNN that this had happened and he is trying to figure out what the appropriate reaction is going to be or how negotiations are going to be affected. There has been a threat from the rebels. They said that if the military from that area is not pulled out, that they would behead some of their hostages. Also, the chief negotiator, Norma Swary (ph), says that the kidnappers have refused to begin formal negotiations unless troops are moved out. Maria Ressa from Manila -- Leon.</s>HARRIS: All right, we thank you so much, Maria. We're also getting reports that the medical conditions of some of those hostages are deteriorating right now. More coverage of that throughout the day so stay with us right here on CNN.
Shots Fired in Philippines Hostage Standoff