BBC News with Julie Candler.
The United States says it's committing every available resource to help hundreds of thousands of earthquake survivors in Haiti. Helicopters from the aircraft carrier Carl Vinson have begun delivering supplies to the capital Port-au-Prince. 10,000 more US troops are expected in Haiti by Monday to help distribute aid and maintain security. But the situation in the capital remains desperate. Survivors have been seen begging for food and water. Hospitals are overcrowded with thousands of injured but lack the resources to treat them. Our correspondent to the capital Port-au-Prince, Nick Davis, says many people can no longer sit around waiting for help.
People very much are fending for themselves at the moment. I have seen people going to buildings which have collapsed where there are broken pipes the water spilling onto the ground and going up to the actual water which is on the floor and actually scooping it up in some cases. People are using whatever methods they can to try and survive while the international relief effort actually finally reaches them and help arrives.
The United Nations Secretary General Ban Ki-Moon has announced the launch of an international aid appeal worth 500 million dollars to help the rescue operation.
The US Defense Secretary Robert Gates says a Pentagon review of the circumstances surrounding last November's mass shooting at the Fort Hood military base has found that not enough has been done to guard against such internal security threats. Mr. Gates presented the findings of an enquiry into the shootings which left 13 soldiers dead and more than 40 injured. He says similar incidents could happen again.